Call close for AbstractFloatingViews that were removed while still open.

I'm not sure how/when this case occurs (perhaps during some transition/state
change), but manually removing the floating view matches the symptoms in the
bug.

Bug: 72996404
Change-Id: I1e7c1a338fcd16c8e07b3c49fb9c9b2097eb2708

src/com/android/launcher3/AbstractFloatingView.java

@@ -97,6 +97,7 @@ public abstract class AbstractFloatingView extends LinearLayout implements Touch
         handleClose(animate);
         BaseActivity.fromContext(getContext()).getUserEventDispatcher()
                 .resetElapsedContainerMillis("container closed");
+        mIsOpen = false;
     }
 
     protected abstract void handleClose(boolean animate);