[CM2] Update beginning-of-sentence suggestions

We need to update them after separator-space, and also when
the user presses shift and they are displayed.

Bug: 15554503
Change-Id: I5596163d5cd94d3cc5f6af10a1ab2cc74b6d4279

java/src/com/android/inputmethod/latin/inputlogic/InputLogic.java

@@ -408,6 +408,9 @@ public final class InputLogic {
             case Constants.CODE_SHIFT:
                 performRecapitalization(inputTransaction.mSettingsValues);
                 inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_NOW);
+                if (mSuggestedWords.mIsPrediction) {
+                    inputTransaction.setRequiresUpdateSuggestions();
+                }
                 break;
             case Constants.CODE_CAPSLOCK:
                 // Note: Changing keyboard to shift lock state is handled in
@@ -815,7 +818,7 @@ public final class InputLogic {
             }
 
             startDoubleSpacePeriodCountdown(inputTransaction);
-            if (wasComposingWord) {
+            if (wasComposingWord || mSuggestedWords.isEmpty()) {
                 inputTransaction.setRequiresUpdateSuggestions();
             }
         } else {