[gnome-shell/gnome-40] altTab: Also return EVENT_PROPAGATE in override of _onItemMotion()

[Marge Bot <marge-bot src gnome org>]

commit f3d15da0489346242e9dd964d06372cabba6903d
Author: Jonas Dreßler <verdre v0yd nl>
Date:   Wed Apr 25 22:48:27 2018 +0200

    altTab: Also return EVENT_PROPAGATE in override of _onItemMotion()
    
    Clutter expects a return value here, so make sure we also return
    Clutter.EVENT_PROPAGATE just like the function we override does.
    
    (cherry picked from commit d8a38672f14cb4614452b39a85e984e29d16445d)
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2181>

 js/ui/altTab.js | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/js/ui/altTab.js b/js/ui/altTab.js
index 26c92de0c7..eb4ef5a2a3 100644
--- a/js/ui/altTab.js
+++ b/js/ui/altTab.js
@@ -814,6 +814,8 @@ class AppSwitcher extends SwitcherPopup.SwitcherList {
         } else {
             this._itemEntered(index);
         }
+
+        return Clutter.EVENT_PROPAGATE;
     }
 
     _enterItem(index) {