### Godot version

4.1 Stable

### System information

MacBook Ventura 13.4

### Issue description

Undo/Redo manager `history_changed` events stop being emitted when clicking on the same editor inspector property. This also stops creating Undo/Redo events, so "undo" actions stop working.

### Steps to reproduce

The steps to reproduce is kind of finnicky, but I was able to reproduce it with relative easy using the "position" propert:

- Click "Y" position and change it to any value; press Enter.
- Click the "Y" position again and change it to any value; press Enter.
- Click the "Y" position again (again), and change it to any value; press Enter.

On the third time changing the value, "history_changed" events stop being emitted. Checking the "History" tab, you'll see only the two events are logged (other changes in the position are not).



### Minimal reproduction project

This can be reproduced in any project, but I'm attaching a project with an addon that logs a "history_changed" event on the console so you know when it stops being emitted.
[HistoryIssue.zip](https://github.com/godotengine/godot/files/12053128/HistoryIssue.zip)

return singleton;
}
EditorUndoRedoManager::EditorUndoRedoManager() {
	if (!singleton) {
		singleton = this;
	}
}
EditorUndoRedoManager::~EditorUndoRedoManager() {
	for (const KeyValue<int, History> &E : history_map) {
		discard_history(E.key, false);
	}
}