magnifier: Unset variable holding GSource ID

Otherwise we try to remove the no longer existing GSource
later on.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1902>

1 files changed, 2 insertions, 0 deletions

diff --git a/js/ui/magnifier.js b/js/ui/magnifier.js
index d818a75b0..22c11766b 100644
--- a/js/ui/magnifier.js
+++ b/js/ui/magnifier.js
@@ -1166,6 +1166,8 @@ var ZoomRegion = class ZoomRegion {
                 this._yDelayed = null;
             }
 
+            this._scrollContentsTimerId = 0;
+
             return GLib.SOURCE_REMOVE;
         });