The main overview group starts capturing events on button-press
events to implement swipe-scrolling. While reactive children of
the group which handle both button-press and button-release events
don't trigger swipe-scrolling, children that only rely on
button-release have stopped working - at least the primary/secondary
icons of the search entry are affected. While the capture handler
already checks the pointer movement between press and release to
determine whether the action should be considered a click rather
than a drag, it still blocks the release event from propagating.
Instead, only block release events for drag actions, but not for
clicks.
https://bugzilla.gnome.org/show_bug.cgi?id=640493
b9e1d917da