$ git clone -n https://src.fedoraproject.org/rpms/vrq.git /var/lib/mock/f45-build-38166-722/root/chroot_tmpdir/scmroot/vrq
Cloning into '/var/lib/mock/f45-build-38166-722/root/chroot_tmpdir/scmroot/vrq'...
$ git fetch origin 9e1f9e8401f5909acccf9c21d6973b4bc2f92b3b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vrq
 * [new ref]         9e1f9e8401f5909acccf9c21d6973b4bc2f92b3b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e1f9e8 fix build for other arches