diff --git a/go/quickstep/res/values-gu/strings.xml b/go/quickstep/res/values-gu/strings.xml
index 28a2d38..e1a568f 100644
--- a/go/quickstep/res/values-gu/strings.xml
+++ b/go/quickstep/res/values-gu/strings.xml
@@ -4,7 +4,7 @@
     <string name="app_share_drop_target_label" msgid="5804774105974539508">"ઍપ શેર કરો"</string>
     <string name="action_listen" msgid="2370304050784689486">"સાંભળો"</string>
     <string name="action_translate" msgid="8028378961867277746">"અનુવાદ કરો"</string>
-    <string name="action_search" msgid="6269564710943755464">"Lens"</string>
+    <string name="action_search" msgid="6269564710943755464">"લેન્સ"</string>
     <string name="dialog_acknowledge" msgid="2804025517675853172">"સમજાઈ ગયું"</string>
     <string name="dialog_cancel" msgid="6464336969134856366">"રદ કરો"</string>
     <string name="dialog_settings" msgid="6564397136021186148">"સેટિંગ"</string>
diff --git a/quickstep/res/values-ka/strings.xml b/quickstep/res/values-ka/strings.xml
index ab3715a..d9420c8 100644
--- a/quickstep/res/values-ka/strings.xml
+++ b/quickstep/res/values-ka/strings.xml
@@ -58,7 +58,7 @@
     <string name="home_gesture_feedback_wrong_swipe_direction" msgid="6993979358080825438">"გადაფურცლეთ ზემოთ."</string>
     <string name="home_gesture_feedback_complete_with_follow_up" msgid="1427872029729605034">"თქვენ შეასრულეთ მთავარ ეკრანზე დაბრუნების ჟესტი. ახლა კი შევიტყოთ, თუ როგორ დავბრუნდეთ უკან."</string>
     <string name="home_gesture_feedback_complete_without_follow_up" msgid="8049099486868933882">"თქვენ შეასრულეთ მთავარ ეკრანზე დაბრუნების ჟესტი."</string>
-    <string name="home_gesture_intro_title" msgid="836590312858441830">"მთავარ გვერდზე გადასასვლელად გადაფურცლეთ"</string>
+    <string name="home_gesture_intro_title" msgid="836590312858441830">"მთავარი გვერდის სანახავად გადაფურცლეთ"</string>
     <string name="home_gesture_intro_subtitle" msgid="2632238748497975326">"გადაფურცლეთ ეკრანის ქვედა კიდიდან ზემოთ. ამ ჟესტს ყოველთვის მთავარი გვერდის ეკრანზე გადაყავხართ."</string>
     <string name="overview_gesture_feedback_swipe_too_far_from_edge" msgid="3032757898111577225">"გადაფურცლეთ ეკრანის ქვედა კიდიდან ზემოთ."</string>
     <string name="overview_gesture_feedback_home_detected" msgid="1411130969354020489">"უფრო ხანგრძლივად დააჭირეთ თითი ფანჯარას, რომ არ დაიხუროს."</string>
diff --git a/res/values-as/strings.xml b/res/values-as/strings.xml
index 9bc08e3..a66b9b6 100644
--- a/res/values-as/strings.xml
+++ b/res/values-as/strings.xml
@@ -120,7 +120,7 @@
     <string name="auto_add_shortcuts_description" msgid="7117251166066978730">"নতুন এপসমূহৰ বাবে"</string>
     <string name="package_state_unknown" msgid="7592128424511031410">"অজ্ঞাত"</string>
     <string name="abandoned_clean_this" msgid="7610119707847920412">"আঁতৰাওক"</string>
-    <string name="abandoned_search" msgid="891119232568284442">"Search"</string>
+    <string name="abandoned_search" msgid="891119232568284442">"সন্ধান কৰক"</string>
     <string name="abandoned_promises_title" msgid="7096178467971716750">"এই এপটো ইনষ্টল কৰা হোৱা নাই"</string>
     <string name="abandoned_promise_explanation" msgid="3990027586878167529">"এই আইকনৰ এপটো ইনষ্টল কৰা হোৱা নাই। আপুনি এইটো আঁতৰাব পাৰে অথবা এপটো বিচাৰি মেনুৱেলভাৱে ইনষ্টল কৰিব পাৰে।"</string>
     <string name="app_installing_title" msgid="5864044122733792085">"<xliff:g id="NAME">%1$s</xliff:g> ইনষ্টল কৰি থকা হৈছে, <xliff:g id="PROGRESS">%2$s</xliff:g> সম্পূৰ্ণ হৈছে"</string>
diff --git a/res/values-kn/strings.xml b/res/values-kn/strings.xml
index 3fa8ac7..26d1c8c 100644
--- a/res/values-kn/strings.xml
+++ b/res/values-kn/strings.xml
@@ -120,7 +120,7 @@
     <string name="auto_add_shortcuts_description" msgid="7117251166066978730">"ಹೊಸ ಅಪ್ಲಿಕೇಶನ್‌ಗಳಿಗೆ"</string>
     <string name="package_state_unknown" msgid="7592128424511031410">"ಅಪರಿಚಿತ"</string>
     <string name="abandoned_clean_this" msgid="7610119707847920412">"ತೆಗೆದುಹಾಕಿ"</string>
-    <string name="abandoned_search" msgid="891119232568284442">"Search"</string>
+    <string name="abandoned_search" msgid="891119232568284442">"ಹುಡುಕಿ"</string>
     <string name="abandoned_promises_title" msgid="7096178467971716750">"ಈ ಅಪ್ಲಿಕೇಶನ್ ಸ್ಥಾಪನೆಗೊಂಡಿಲ್ಲ"</string>
     <string name="abandoned_promise_explanation" msgid="3990027586878167529">"ಈ ಐಕಾನ್ ಅಪ್ಲಿಕೇಶನ್ ಸ್ಥಾಪನೆಗೊಂಡಿಲ್ಲ. ನೀವು ಅದನ್ನು ತೆಗೆದುಹಾಕಬಹುದು ಅಥವಾ ಅಪ್ಲಿಕೇಶನ್ ಹುಡುಕಬಹುದು ಮತ್ತು ಹಸ್ತಚಾಲಿತವಾಗಿ ಅದನ್ನು ಸ್ಥಾಪಿಸಬಹುದು."</string>
     <string name="app_installing_title" msgid="5864044122733792085">"<xliff:g id="NAME">%1$s</xliff:g> ಇನ್‌ಸ್ಟಾಲ್ ಮಾಡಲಾಗುತ್ತಿದೆ, <xliff:g id="PROGRESS">%2$s</xliff:g> ಪೂರ್ಣಗೊಂಡಿದೆ"</string>
diff --git a/res/values-ml/strings.xml b/res/values-ml/strings.xml
index f282bd1..67b999d 100644
--- a/res/values-ml/strings.xml
+++ b/res/values-ml/strings.xml
@@ -120,7 +120,7 @@
     <string name="auto_add_shortcuts_description" msgid="7117251166066978730">"പുതിയ ആപ്പുകൾക്ക്"</string>
     <string name="package_state_unknown" msgid="7592128424511031410">"അജ്ഞാതം"</string>
     <string name="abandoned_clean_this" msgid="7610119707847920412">"നീക്കംചെയ്യുക"</string>
-    <string name="abandoned_search" msgid="891119232568284442">"Search"</string>
+    <string name="abandoned_search" msgid="891119232568284442">"തിരയുക"</string>
     <string name="abandoned_promises_title" msgid="7096178467971716750">"ഈ അപ്ലിക്കേഷൻ ഇൻസ്റ്റാളുചെയ്‌തിട്ടില്ല"</string>
     <string name="abandoned_promise_explanation" msgid="3990027586878167529">"ഈ ഐക്കണുവേണ്ടി അപ്ലിക്കേഷൻ ഇൻസ്റ്റാളുചെയ്‌തിട്ടില്ല. നിങ്ങൾക്കത് നീക്കംചെയ്യാനാകും അല്ലെങ്കിൽ അപ്ലിക്കേഷനുവേണ്ടി തിരഞ്ഞുകൊണ്ട് അത് സ്വമേധയാ ഇൻസ്റ്റാളുചെയ്യുക."</string>
     <string name="app_installing_title" msgid="5864044122733792085">"<xliff:g id="NAME">%1$s</xliff:g> ഇൻസ്‌റ്റാൾ ചെയ്യുന്നു, <xliff:g id="PROGRESS">%2$s</xliff:g> പൂർത്തിയായി"</string>
diff --git a/res/values-or/strings.xml b/res/values-or/strings.xml
index b1d6445..e0f1865 100644
--- a/res/values-or/strings.xml
+++ b/res/values-or/strings.xml
@@ -120,7 +120,7 @@
     <string name="auto_add_shortcuts_description" msgid="7117251166066978730">"ନୂଆ ଆପ୍‌ ପାଇଁ"</string>
     <string name="package_state_unknown" msgid="7592128424511031410">"ଅଜଣା"</string>
     <string name="abandoned_clean_this" msgid="7610119707847920412">"କାଢ଼ି ଦିଅନ୍ତୁ"</string>
-    <string name="abandoned_search" msgid="891119232568284442">"Search"</string>
+    <string name="abandoned_search" msgid="891119232568284442">"ସନ୍ଧାନ କରନ୍ତୁ"</string>
     <string name="abandoned_promises_title" msgid="7096178467971716750">"ଏହି ଆପ୍‌ ଇନଷ୍ଟଲ୍‌ ହୋଇନାହିଁ"</string>
     <string name="abandoned_promise_explanation" msgid="3990027586878167529">"ଏହି ଆଇକନ୍‌ ପାଇଁ ଆପ୍‌ ଇନଷ୍ଟଲ୍‌ ହୋଇନାହିଁ। ଏହାକୁ ଆପଣ ଆପ୍‌ ପାଇଁ ବାହାର କରିପାରିବେ କିମ୍ୱା ସର୍ଚ୍ଚ କରି ପାରିବେ ଏବଂ ଏହାକୁ ମାନୁଆଲ୍‌ ଭାବରେ ଇନଷ୍ଟଲ୍‌ କରିପାରିବେ।"</string>
     <string name="app_installing_title" msgid="5864044122733792085">"<xliff:g id="NAME">%1$s</xliff:g> ଇନଷ୍ଟଲ୍ କରାଯାଉଛି, <xliff:g id="PROGRESS">%2$s</xliff:g> ସମ୍ପୂର୍ଣ୍ଣ ହୋଇଛି"</string>
diff --git a/src/com/android/launcher3/allapps/AllAppsContainerView.java b/src/com/android/launcher3/allapps/AllAppsContainerView.java
index d2c71b2..f420ec2 100644
--- a/src/com/android/launcher3/allapps/AllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsContainerView.java
@@ -499,8 +499,10 @@
 
     private void replaceRVContainer(boolean showTabs) {
         for (int i = 0; i < mAH.length; i++) {
-            if (mAH[i].recyclerView != null) {
-                mAH[i].recyclerView.setLayoutManager(null);
+            AllAppsRecyclerView rv = mAH[i].recyclerView;
+            if (rv != null) {
+                rv.setLayoutManager(null);
+                rv.setAdapter(null);
             }
         }
         View oldView = getRecyclerViewContainer();
diff --git a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
index 2c84a3d..bddbbd0 100644
--- a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
@@ -63,6 +63,13 @@
     private final SparseIntArray mCachedScrollPositions = new SparseIntArray();
     private final AllAppsFastScrollHelper mFastScrollHelper;
 
+
+    private final AdapterDataObserver mObserver = new RecyclerView.AdapterDataObserver() {
+        public void onChanged() {
+            mCachedScrollPositions.clear();
+        }
+    };
+
     // The empty-search result background
     private AllAppsBackgroundDrawable mEmptySearchBackground;
     private int mEmptySearchBackgroundTopOffset;
@@ -247,12 +254,13 @@
 
     @Override
     public void setAdapter(Adapter adapter) {
+        if (getAdapter() != null) {
+            getAdapter().unregisterAdapterDataObserver(mObserver);
+        }
         super.setAdapter(adapter);
-        adapter.registerAdapterDataObserver(new RecyclerView.AdapterDataObserver() {
-            public void onChanged() {
-                mCachedScrollPositions.clear();
-            }
-        });
+        if (adapter != null) {
+            adapter.registerAdapterDataObserver(mObserver);
+        }
     }
 
     @Override