Random assertion hit in the Editor when Monster Type is selected

[ihhub]

Preliminary checks

• [x] I've checked that there aren't other open issues on the same topic.
• [x] I've checked that this issue is reproducible on the latest snapshot build.

Platform

Windows

Describe the bug

I am not sure what exactly happened but when I selected Monster Type brush and didn't select any monster I got just tile selection. Then after clicking on many places this type of cursor appeared outside map boundaries and after clicking on the outside area I got an assertion hit:

assert( _editorPanel.showAreaSelectRect() && isBrushEmpty );

I am not sure what caused this and how to replicate so for now I am just keeping it as a placeholder.

Save file

No need.

Additional info

No response

[ihhub]

So far it's a random assertion hit.