Hi Samo, wouldn't you know it I've become a DD before I got a response to the git-subrepo ITP/RFS ;) I also completely forgot about it until I needed it just now.
Are you still interested in maintaining git-subrepo in Debian? I'm trying to limit my personal packaging work to stuff I actually use on a regular basis and apparently subrepo is not that essential, but as a DD I can now sponsor any uploads and help you with figuring out the Debian workflow and such though. My packaging from way back when is at https://salsa.debian.org/dxld/git-subrepo if you feel like it. Probably needs a once over to check for updates necessary changes tho. Thanks, --Daniel