$ git clone -n https://src.fedoraproject.org/rpms/copyq.git /var/lib/mock/f45-build-5222-338/root/chroot_tmpdir/scmroot/copyq
Cloning into '/var/lib/mock/f45-build-5222-338/root/chroot_tmpdir/scmroot/copyq'...
$ git fetch origin 14c3482cdb20ace0f08501b0841df965ed40a676:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/copyq
 * [new ref]         14c3482cdb20ace0f08501b0841df965ed40a676 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 14c3482 rhbz#2545486