*Steps to reproduce:*
# Open a Unity Project
# Create a new UI Document in the Project Window via Right-Click > Create > UI Toolkit > UI Document
# Open the new UI Document in UI Builder by double clicking on it
# In the UI Builder Hierarchy, select the .uxml file. The Inspector should show the Canvas Size settings
# Check the box next to 'Match Game View'

*Actual results:* The UI Builder Window detects unsaved changes and the Unsaved Changes Marker ( * ) is displayed.

However, nothing actually needs to be saved as changing the Canvas Size is auto saved in the Library (not on the uxml asset itself), and if you change the Canvas Size any other way (such as 'Fit Canvas' button or manually setting the values), then there is no unsaved changes.

If you try to exit the UI Builder Window, you will get an 'Unsaved Changes Detected' warning. However, pressing either Save or Discard will not affect anything as there are no changes to save, and even if you press Discard the Canvas Sizes and Match Game View checkbox will have been auto saved.

*Expected results:* The UI Builder Window does not detect unsaved changes when the 'Match Game View' box is ticked.

*Reproducible with versions:* 6000.1.0a3, 6000.0.26f1, 2022.3.52f1, 2021.3.45f1

*Not reproducible with versions:* - 

*Can’t test with versions:* - 

*Tested on (OS):* Windows 10/11

*Notes:* -