$ git clone -n https://github.com/xcp-ng-rpms/ocaml-findlib /var/lib/mock/v9.0-incoming-11332-29650/root/chroot_tmpdir/scmroot/ocaml-findlib
Cloning into '/var/lib/mock/v9.0-incoming-11332-29650/root/chroot_tmpdir/scmroot/ocaml-findlib'...
$ git fetch origin 5bbcde9f16cf8e9e50043e95fc39fa63986bc15d:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/ocaml-findlib
 * [new ref]         5bbcde9f16cf8e9e50043e95fc39fa63986bc15d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5bbcde9 Merge pull request #4 from xcp-ng-rpms/ydi/9