$ git clone -n https://src.fedoraproject.org/rpms/plasma-systemsettings.git /var/lib/mock/f40-build-2180548-51174/root/chroot_tmpdir/scmroot/plasma-systemsettings
Cloning into '/var/lib/mock/f40-build-2180548-51174/root/chroot_tmpdir/scmroot/plasma-systemsettings'...
$ git fetch origin 2591adea23f05af76adeb9a4f60920c365717b8b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-systemsettings
 * [new ref]         2591adea23f05af76adeb9a4f60920c365717b8b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2591ade 5.91.0