$ git clone -n https://src.fedoraproject.org/rpms/plasma-drkonqi.git /var/lib/mock/f42-build-side-1-3566289-46733/root/chroot_tmpdir/scmroot/plasma-drkonqi
Cloning into '/var/lib/mock/f42-build-side-1-3566289-46733/root/chroot_tmpdir/scmroot/plasma-drkonqi'...
$ git fetch origin 0c14ba75ae8518ec1fa16692c36d2c334b78d1d4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-drkonqi
 * [new ref]         0c14ba75ae8518ec1fa16692c36d2c334b78d1d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0c14ba7 6.4.0