Opengrok notices newer files but does not rebuild the xref .gz files

[dkr91]

Describe the bug
Opengrok notices newer files but does not rebuild the xref .gz files

If you provide the exact version of OpenGrok, JDK used, OS(and its version) used and Tomcat(or your webapp server) used it can help figuring out an environment issue.
Opengrok Docker 1.13.7

To Reproduce
Steps to reproduce the behavior:
Let opengrok-sync update the source.

Expected behavior
Opengrok checkFileInner updates the .gz files when it notces a updated code-file

Screenshots

14-May-2024 09:07:13.608 INFO [ForkJoinPool.commonPool-worker-945] org.opengrok.suggest.Suggester.rebuild Suggesters for [demo] were rebuilt (took 4 minutes 57 seconds)
14-May-2024 09:07:26.367 WARNING [http-nio-8080-exec-2] org.opengrok.web.PageConfig.checkFileInner file '/opengrok/src/demo/src/test.sh' is newer than '/opengrok/data/xref/demo/src/test.sh.gz'

Additional context
Add any other context about the problem here.