Steps to reproduce the issue
- Create Article with some content
- Save article
- Open article again and add some content
- Save article
- Open Versioning, select both versions and compare
Expected result
- Content shown in columnn "Changes" with changes marked
Actual result
System information (as much as possible)
Joomla 5.0.1 installation updated from 4.4.1.
Additional comments
Article Version comparison worked fine in 4.4.1 before the update
Have enabled debug, cannot see anything strange in the queries list or the log (neither of the Joomla log nor the PHP log of the server)

confirmed