Uncommit an extra LogUnit

The period-generating double-space adds an extra LogUnit --
it must be removed when reverting.

Bug: 9088919

Change-Id: Ic148f40b4030a9b4a0651029bda87f7b94a52252
diff --git a/java/src/com/android/inputmethod/research/ResearchLogger.java b/java/src/com/android/inputmethod/research/ResearchLogger.java
index 56ab90c..d84f696 100644
--- a/java/src/com/android/inputmethod/research/ResearchLogger.java
+++ b/java/src/com/android/inputmethod/research/ResearchLogger.java
@@ -1575,7 +1575,12 @@
     private static final LogStatement LOGSTATEMENT_RICHINPUTCONNECTION_REVERTDOUBLESPACEPERIOD =
             new LogStatement("RichInputConnectionRevertDoubleSpacePeriod", false, false);
     public static void richInputConnection_revertDoubleSpacePeriod() {
-        getInstance().enqueueEvent(LOGSTATEMENT_RICHINPUTCONNECTION_REVERTDOUBLESPACEPERIOD);
+        final ResearchLogger researchLogger = getInstance();
+        // An extra LogUnit is added for the period; this is removed here because of the revert.
+        researchLogger.uncommitCurrentLogUnit(null, true /* dumpCurrentLogUnit */);
+        // TODO: This will probably be lost as the user backspaces further.  Figure out how to put
+        // it into the right logUnit.
+        researchLogger.enqueueEvent(LOGSTATEMENT_RICHINPUTCONNECTION_REVERTDOUBLESPACEPERIOD);
     }
 
     /**