$ git clone -n https://src.fedoraproject.org/rpms/mariadb10.11.git /var/lib/mock/f41-build-829763-156202/root/chroot_tmpdir/scmroot/mariadb10.11
Cloning into '/var/lib/mock/f41-build-829763-156202/root/chroot_tmpdir/scmroot/mariadb10.11'...
$ git fetch origin 20a6457b8d407a000bc281a2f2281d295cbbe88b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mariadb10.11
 * [new ref]         20a6457b8d407a000bc281a2f2281d295cbbe88b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 20a6457 Bump release for package rebuild