When I change a file in a subrepo I hoped for that I could make a commit on my shell repo so that also the .hgsubstate is updated automatically. Therefore, I specified the --subrepos option in the commit dialog.
Unfortunately, even after pressing the refresh button in the commit dialog, the modified file in the subrepo is not showing up. When just clicking on Commit button, I consequently get a "No modified files checkmarked for commit" message.
It would be very beneficial to an easy subrepo workflow to sort this out.