$ git clone -n https://src.fedoraproject.org/rpms/python-mplcairo.git /var/lib/mock/f41-build-3152943-40629/root/chroot_tmpdir/scmroot/python-mplcairo
Cloning into '/var/lib/mock/f41-build-3152943-40629/root/chroot_tmpdir/scmroot/python-mplcairo'...
$ git fetch origin 921a15da758d57b884de4aa352e6e5d08121c4ba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mplcairo
 * [new ref]         921a15da758d57b884de4aa352e6e5d08121c4ba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 921a15d Update to latest version (#2323318)