
Commit ff3d32dd18
added a custom DashIcon subclass that disables
all DND methods from ancestors, including canceling the context
menu timeout and emitting the overview's item-drag-begin signal.
All we want is opting out of the parent's scale-and-fade behavior,
so override those methods instead.
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3209