$ git clone -n https://src.fedoraproject.org/rpms/plasma-systemmonitor.git /var/lib/mock/f38-build-717321-96529/root/chroot_tmpdir/scmroot/plasma-systemmonitor
Cloning into '/var/lib/mock/f38-build-717321-96529/root/chroot_tmpdir/scmroot/plasma-systemmonitor'...
$ git fetch origin c8d781a7aa5f9a38319a78ed2deb10d6f1a2da14:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-systemmonitor
 * [new ref]         c8d781a7aa5f9a38319a78ed2deb10d6f1a2da14 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c8d781a 5.27.5