$ git clone -n https://src.fedoraproject.org/rpms/gst123.git /var/lib/mock/f31-build-85467-31603/root/chroot_tmpdir/scmroot/gst123
Cloning into '/var/lib/mock/f31-build-85467-31603/root/chroot_tmpdir/scmroot/gst123'...
$ git reset --hard a999216c33c0a4e8ac75799396bb37c583c3cdaa
HEAD is now at a999216 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild