$ git clone -n https://src.fedoraproject.org/rpms/stratisd.git /var/lib/mock/f40-build-798784-142018/root/chroot_tmpdir/scmroot/stratisd
Cloning into '/var/lib/mock/f40-build-798784-142018/root/chroot_tmpdir/scmroot/stratisd'...
$ git fetch origin 4ba7fd3160552ac1031603ba9983d909f99be5a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/stratisd
 * [new ref]         4ba7fd3160552ac1031603ba9983d909f99be5a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ba7fd3 Rebuild after mass branch