$ git clone -n https://src.fedoraproject.org/rpms/ocaml-camlp5-buildscripts.git /var/lib/mock/f39-build-2064869-49224/root/chroot_tmpdir/scmroot/ocaml-camlp5-buildscripts
Cloning into '/var/lib/mock/f39-build-2064869-49224/root/chroot_tmpdir/scmroot/ocaml-camlp5-buildscripts'...
$ git fetch origin 7e4ca29effcd30dd9da76c13af96f18dd023828f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-camlp5-buildscripts
 * [new ref]         7e4ca29effcd30dd9da76c13af96f18dd023828f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7e4ca29 Generate debuginfo