OptionButton item cannot be selected due to immediate closing after mouse released

[Chaosus]

Godot version:
d629b17

OS/device including version:
Win10

Issue description:

Note: this bug appears only if "Single Window Mode" is enabled in Editor settings

[akien-mga]

I wonder if #40226 fixes that?

[akien-mga]

I wonder if #40226 fixes that?

Tested, it's still reproducible after that PR.

[aaronfranke]

Interestingly, this doesn't seem to happen for every OptionButton. For example, in #42447, in the new "Project -> Version Control -> Create Version Control Metadata" menu, the OptionButton works fine in single window mode for me, but it doesn't work in the Attach Script menu as described here in the OP.

[Riteo]

@aaronfranke weird, I can't replicate what you're experiencing, it just instantly unfocuses to me too. For me on Arch Linux the optionbutton's popup instantly closes even there.

[Calinou]

I can't reproduce this issue on master 33b8f14 on Linux with single-window mode enabled. Can anyone else still reproduce this?

[Chaosus]

Yep, seems fixed!