$ git clone -n https://src.fedoraproject.org/rpms/plasma-systemmonitor.git /var/lib/mock/f40-build-2255797-54266/root/chroot_tmpdir/scmroot/plasma-systemmonitor
Cloning into '/var/lib/mock/f40-build-2255797-54266/root/chroot_tmpdir/scmroot/plasma-systemmonitor'...
$ git fetch origin 02ae16a7c25132b82845b30f3b503a834873d7b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-systemmonitor
 * [new ref]         02ae16a7c25132b82845b30f3b503a834873d7b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 02ae16a 5.92.0