$ git clone -n https://src.fedoraproject.org/rpms/plasma-pa.git /var/lib/mock/f42-build-862474-170829/root/chroot_tmpdir/scmroot/plasma-pa
Cloning into '/var/lib/mock/f42-build-862474-170829/root/chroot_tmpdir/scmroot/plasma-pa'...
$ git fetch origin 5cf0e9e1d4a1e6caf143b5da6edd85e6b0f6f29f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-pa
 * [new ref]         5cf0e9e1d4a1e6caf143b5da6edd85e6b0f6f29f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5cf0e9e 6.2.4