$ git clone -n https://src.fedoraproject.org/rpms/plasma-systemsettings.git /var/lib/mock/f40-build-2606888-63595/root/chroot_tmpdir/scmroot/plasma-systemsettings
Cloning into '/var/lib/mock/f40-build-2606888-63595/root/chroot_tmpdir/scmroot/plasma-systemsettings'...
$ git fetch origin c1a249ba6420d1e69c467e2dfbe0eb8f6826402d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-systemsettings
 * [new ref]         c1a249ba6420d1e69c467e2dfbe0eb8f6826402d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c1a249b 6.0.2