CTRL+Z undoes multiple things at once

[ToasterBiome]

Describe the bug

Things like var-editing, deleting selections with the select tool and cutting selections with the select tool all stack with other undo actions.

1. Delete a selected area with the select tool
2. Do any action such as placing turfs/mobs/objs, moving offsets, or varediting
3. Press CTRL+Z
4. It will undo 2 and 3

You can also do 1 multiple times, and then it will undo all of them at once.

chrome_Zc8f4qy0kG.mp4

chrome_tBbEHd1RkJ.mp4

What browser are you using?

Chrome