Desktop context (right click) menu appears over a Terminal window if one is open

Desktop context (right click) menu appears over a Terminal window if one is open.

In Ubuntu the desktop menu actually opens over the Terminal window and nowhere near the pointer. Using gnome-shell master however, the desktop context menu appears in the right place, and then only flashes in front of the Terminal window as it is closing. It feels like the same bug since the spurious placement of the menu is the same in both cases. Only the timing differs.

Reproduced in gnome-shell 3.33.91-1ubuntu1, as well as master (8adfc5b1).

Downstream: https://bugs.launchpad.net/bugs/1842910