$ git clone -n https://src.fedoraproject.org/rpms/messagelib.git /var/lib/mock/f41-build-1031589-18518/root/chroot_tmpdir/scmroot/messagelib
Cloning into '/var/lib/mock/f41-build-1031589-18518/root/chroot_tmpdir/scmroot/messagelib'...
$ git fetch origin 9fb3d13ff164f80483186ba4c0c807bb5f412f3d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/messagelib
 * [new ref]         9fb3d13ff164f80483186ba4c0c807bb5f412f3d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9fb3d13 24.05.1