$ git clone -n https://src.fedoraproject.org/rpms/jack_capture.git /var/lib/mock/f31-build-54209-27966/root/thebuilddir/tmp/scmroot/jack_capture
Cloning into '/var/lib/mock/f31-build-54209-27966/root/thebuilddir/tmp/scmroot/jack_capture'...
$ git reset --hard 50e902c54c4d380cf6b77fd7085aada9b2cf2b1c
HEAD is now at 50e902c - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild