$ git clone -n https://src.fedoraproject.org/rpms/mlir.git /var/lib/mock/f41-build-1032068-18543/root/chroot_tmpdir/scmroot/mlir
Cloning into '/var/lib/mock/f41-build-1032068-18543/root/chroot_tmpdir/scmroot/mlir'...
$ git fetch origin 668f732dd7fa8c27a4f0a089dbf0f1e2fa267c4d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mlir
 * [new ref]         668f732dd7fa8c27a4f0a089dbf0f1e2fa267c4d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 668f732 18.1.7 Release