$ git clone -n https://src.fedoraproject.org/rpms/ocaml-pcre.git /var/lib/mock/f38-build-side-42-init-devel-809947-28260/root/chroot_tmpdir/scmroot/ocaml-pcre
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-809947-28260/root/chroot_tmpdir/scmroot/ocaml-pcre'...
$ git fetch origin 749e71355063bd49b0cf644deaaf865ab41849ac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-pcre
 * [new ref]         749e71355063bd49b0cf644deaaf865ab41849ac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 749e713 Rebuild OCaml packages for F38