Versioned settings changes cannot be applied - clean installation and on first checkout

I built a DSL configuration for my TC installation v2019, this configuration is committed in my GIT VCS, now I've another brand new TC instance v2020.2.1.
I'm trying to apply the configuration I have on GIT on this new installation.

When I try, I receive the error, and ther's no way to go ahead:

Cannot find previous revision of project:
[MyProject], skip updating settings to revision b429fb0ad33d35fbbf65740b1sa31sb5cb3b7.
Please commit current project settings into VCS first. 

In the older empty TC v2012 installation I receive this error but a simple "empty" commit resolves, in 2020.2.1 this workaround is not working.

This post seems slightly similar to this other.
https://teamcity-support.jetbrains.com/hc/en-us/community/posts/360009298339-Versioned-settings-changes-cannot-be-applied
Not sure it's the same issue

I found a workaround disabling the synchronization, set again all context parameters, and enable again the synchronization.