Undo/Redo does not work in the UV editor

[JekSun97]

Tested versions

This problem occurs in all versions starting from 4.0+, but is not observed in 3.5+

System information

Windows 10, Radeon RX 560 Series

Issue description

When editing UVs in the Polygon2D editor, you cannot undo any action when pressing Ctrl+Z

Steps to reproduce

Open the UV editor, move the points and try to return them to their original place

Minimal reproduction project (MRP)

Too easy to check, not required

[JekSun97]

AcceptDialog blocks input from the main window; if you create an UndoRedo and an AcceptDialog in the editor itself you will be able to test this.
I tried to make the UV Editor exclusive as it helps lock the AcceptDialog input focus in the editor, but uv_edit->set_exclusive(false) in polygon_2d_editor_plugin.cpp doesn't solve the problem