Markdown viewer displays file incompletely until resized

1. Start Creator and do not resize any window or view.
2. Open the file dist/changelog/changes-13.0.0.md from Creator's source repository.
   I took it from branch 13.0 at 2b525b424603c13a6c68652cbfb081dba05af800
3. Scroll to the ends of both views for the file.
   The rendered view is incomplete, only one contributor is being listed:
   
4. Slightly resize the rendered view or Creator's main window.
   Now the other contributors appear.

The rendered view should be complete without any further user interaction.