How to reproduce:
1. Create and open a new project
2. Install the ProBuilder package in the Package Manager
3. Create a PolyShape by going to Tools > ProBuilder > Editors > Create PolyShape
4. Complete the shape creation
5. Trigger the Undo (CTRL+Z) once
6. Observe the Scene view

Expected result: The PolyShape is deleted, or the shape height is undone, or the last placed point is undone
Actual result: Nothing happens

Reproducible in: 5.2.3 (2021.3.48f1, 2022.3.57f1), 6.0.4 (6000.0.37f1, 6000.1.0b5, 6000.2.0a2)

Reproduced on: Windows 11 Pro (23H2)
Not reproduced on: No other environment tested

Note: The most logical approach would be to re-enable the Edit mode and undo the height setting action