AppIcon: Nullify _draggable if available on destruction

When an AppIcon actor is destroyed we try to unset a non-existent draggable
property.

Fix the typo, doing this even if we're not currently in a drag operation.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/677

diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index 50b8fd9b9dcafbdc27df2e7b349a24afa6e37305..ac6d8ce2546474cfd1cd6d9df74c87eda632bde1 100644 (file)
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -1897,9 +1897,10 @@ var AppIcon = class AppIcon {
         }
         if (this._stateChangedId > 0)
             this.app.disconnect(this._stateChangedId);
-        if (this._draggable && this._dragging) {
-            Main.overview.endItemDrag(this);
-            this.draggable = null;
+        if (this._draggable) {
+            if (this._dragging)
+                Main.overview.endItemDrag(this);
+            this._draggable = null;
         }
         this._stateChangedId = 0;
         this._removeMenuTimeout();