The Inspector resource selection menu re-opens instead of just hiding after clicking on the arrow button

[Chaosus]

Godot version

3.x/4.0(be1adf4)

System information

Windows 10

Issue description

I expect the popup menu will hide (or show when its hidden) and not re-open again when clicking on the arrow button on any resource property in the inspector:

Steps to reproduce

Click on any resource/object property in the inspector

Minimal reproduction project

No response

[akien-mga]

Confirmed in 3.x. Just to clarify as I initially misunderstood the GIF, on first click the PopupMenu is shown properly and doesn't flicker. The problem is that then clicking the arrow again makes it hide and reshow right away, instead of just hiding.

[IgorKordiukiewicz]

The EditorResourcePicker::_update_menu() is called every time the arrow button is clicked. And this function calls edit_menu->popup();. I tried checking if edit_menu is visible and only if not - calling popup(). But I don't think its possible because it gets hidden before that (the hide() function gets called by some signal, so maybe it gets hidden automatically because of mouse click outside the edit_menu area?).
Also the OptionButton's arrow button (e.g. CanvasItem -> Texture -> Filter) instead of hiding if already visible on pressed, it opens again and then hides so it should probably get fixed too?