$ git clone -n https://src.fedoraproject.org/rpms/ocaml-merlin.git /var/lib/mock/f42-build-3367126-45050/root/chroot_tmpdir/scmroot/ocaml-merlin
Cloning into '/var/lib/mock/f42-build-3367126-45050/root/chroot_tmpdir/scmroot/ocaml-merlin'...
$ git fetch origin 86492097c4d85d4b73eb460b0edf7fb5555020ff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-merlin
 * [new ref]         86492097c4d85d4b73eb460b0edf7fb5555020ff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8649209 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild