@Andrew_McClary, @RiccardoKlinger
I never figured out a way to do this with the Pro client.
I was able to do it using SQL. The only issue I noticed was that the version difference comparison tool stopped working. This is the tool in the Pro versioning ribbon that lets you see differences between versions. I don't know for sure if the SQL edit broke the tool, it is only a guess.
If I created a new feature service with a different name then the version difference tool worked again.
@RiccardoKlingerI get slow performance on a large number of edits as well using feature services. In my case it was the topology. I had better success in bulk updates by disabling topology first and then doing the edit.