$ git clone -n https://src.fedoraproject.org/rpms/drbd.git /var/lib/mock/f41-build-side-1-2817280-32985/root/chroot_tmpdir/scmroot/drbd
Cloning into '/var/lib/mock/f41-build-side-1-2817280-32985/root/chroot_tmpdir/scmroot/drbd'...
$ git fetch origin 4ff7bf0eb85a6863b7313a4b788d7a078a4efa20:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/drbd
 * [new ref]         4ff7bf0eb85a6863b7313a4b788d7a078a4efa20 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ff7bf0 Fixed year in changelog