$ git clone -n https://src.fedoraproject.org/rpms/merkuro.git /var/lib/mock/f41-build-712985-13044/root/chroot_tmpdir/scmroot/merkuro
Cloning into '/var/lib/mock/f41-build-712985-13044/root/chroot_tmpdir/scmroot/merkuro'...
$ git fetch origin 5493c00abcdee96da6b14dd3c8f32743195fe968:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/merkuro
 * [new ref]         5493c00abcdee96da6b14dd3c8f32743195fe968 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5493c00 24.05.0