$ git clone -n https://src.fedoraproject.org/rpms/libopenraw.git /var/lib/mock/f45-build-39638-750/root/chroot_tmpdir/scmroot/libopenraw
Cloning into '/var/lib/mock/f45-build-39638-750/root/chroot_tmpdir/scmroot/libopenraw'...
$ git fetch origin cb6ea63233ea5066041fa083e05477336be1b7f9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libopenraw
 * [new ref]         cb6ea63233ea5066041fa083e05477336be1b7f9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb6ea63 Update to version 0.3.7