$ git clone -n https://src.fedoraproject.org/rpms/ocaml-mysql.git /var/lib/mock/f42-build-865523-173241/root/chroot_tmpdir/scmroot/ocaml-mysql
Cloning into '/var/lib/mock/f42-build-865523-173241/root/chroot_tmpdir/scmroot/ocaml-mysql'...
$ git fetch origin 777e51040a4224f1e1460d9b7494352c41642bd9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-mysql
 * [new ref]         777e51040a4224f1e1460d9b7494352c41642bd9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 777e510 OCaml 5.3.0 rebuild for Fedora 42