$ git clone -n https://src.fedoraproject.org/rpms/copyq.git /var/lib/mock/f41-build-side-1-3061179-38478/root/chroot_tmpdir/scmroot/copyq
Cloning into '/var/lib/mock/f41-build-side-1-3061179-38478/root/chroot_tmpdir/scmroot/copyq'...
$ git fetch origin 91fce5d5157fe7227b30994d2dc2bf594b87d579:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/copyq
 * [new ref]         91fce5d5157fe7227b30994d2dc2bf594b87d579 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91fce5d rhbz#2320093