$ git clone -n https://src.fedoraproject.org/rpms/mariadb.git /var/lib/mock/f39-build-1723084-41229/root/chroot_tmpdir/scmroot/mariadb
Cloning into '/var/lib/mock/f39-build-1723084-41229/root/chroot_tmpdir/scmroot/mariadb'...
$ git fetch origin 9fe7f4029b9e93fe32b43b43e1ed0e5521124c91:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mariadb
 * [new ref]         9fe7f4029b9e93fe32b43b43e1ed0e5521124c91 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9fe7f40 Testsuite verified for 10.5.23