Saving a workflow in collaborative editor without making any changes creates a new version

[lmac-1]

Describe the bug If you open a workflow in collaborative editor and click Save without making any new changes, it updates the version number.

Version number v2.14.15-pre

I have reproduced this locally on main:

• Yes
• No

To Reproduce Steps to reproduce the behavior:

1. Open collaborative editor and make a note of the current version (e.g. latest = version 90)
2. Click Save
3. Refresh the page to update version dropdown (due to Saving in collaborative editor should update the version number in VersionDropdown without refreshing #4024 - UI version number without refreshing the page)

NOTE: If you aren't sure if your workflow has unsaved changes - you can repeat the steps - as the second time you save, you can be sure that you don't have any new changes

Expected behavior Latest should not have changed (e.g. should still be latest = version 90)
Actual behavior Latest has increased by 1 (e.g. latest = version 91)