CTRL + Z in connector config forms removes the last inserted connector from canvas

[tplevko]

Describe the Bug

The last inserted connector from canvas get's removed in case the user tries to undo the inserted text using "crtl + z".

Steps to Reproduce the Bug or Issue

1. insert connectors
2. insert text into the connector configuration form
3. Try perform undo action using "ctrl + z"
4. see the last inserted connector was removed instead the text user tried to undo

Screenshots or Videos

Platform

• OS: [Linux]
• Browser: [Chrome, Firefox]
• Version: [latest]