[gimp] app: unfreed GList.

[Jehan <jehanp src gnome org>]

commit 456327eff02049ab4e30a28fb2673fbbe0123398
Author: Jehan <jehan girinstud io>
Date:   Sun Aug 22 10:56:13 2021 +0200

    app: unfreed GList.
    
    Thanks to Massimo for reporting.

 app/tools/gimptransformgridtool.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/app/tools/gimptransformgridtool.c b/app/tools/gimptransformgridtool.c
index 842b3dec6f..197f9ad356 100644
--- a/app/tools/gimptransformgridtool.c
+++ b/app/tools/gimptransformgridtool.c
@@ -720,6 +720,8 @@ gimp_transform_grid_tool_options_notify (GimpTool         *tool,
                 {
                   gimp_transform_grid_tool_show_selected_objects (tg_tool);
                 }
+
+              g_list_free (objects);
             }
 
           gimp_transform_grid_tool_update_preview (tg_tool);