$ git clone -n https://src.fedoraproject.org/rpms/mariadb10.11.git /var/lib/mock/f41-build-750925-13388/root/chroot_tmpdir/scmroot/mariadb10.11
Cloning into '/var/lib/mock/f41-build-750925-13388/root/chroot_tmpdir/scmroot/mariadb10.11'...
$ git fetch origin 16ae5e13dedd1db112a3b1ac5aca202b7ca62bf1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mariadb10.11
 * [new ref]         16ae5e13dedd1db112a3b1ac5aca202b7ca62bf1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 16ae5e1 SPECfile %files section fixup - add missing directories