$ git clone -n https://src.fedoraproject.org/rpms/plasma-mobile.git /var/lib/mock/f40-build-2255783-54264/root/chroot_tmpdir/scmroot/plasma-mobile
Cloning into '/var/lib/mock/f40-build-2255783-54264/root/chroot_tmpdir/scmroot/plasma-mobile'...
$ git fetch origin 6f465c86cfe3316afe486e0eecfd672cac24f126:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-mobile
 * [new ref]         6f465c86cfe3316afe486e0eecfd672cac24f126 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f465c8 5.92.0