patch 8.1.1963: popup window filter may be called recursively

Problem:    Popup window filter may be called recursively when using a Normal
            mode command.
Solution:   Prevent recursiveness. (closes #4887)  Also restore KeyTyped.
diff --git a/src/version.c b/src/version.c
index 7fd13b8..fe8b34a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1963,
+/**/
     1962,
 /**/
     1961,