$ git clone -n https://src.fedoraproject.org/rpms/kf6-krunner.git /var/lib/mock/f42-build-side-1-3573598-46768/root/chroot_tmpdir/scmroot/kf6-krunner
Cloning into '/var/lib/mock/f42-build-side-1-3573598-46768/root/chroot_tmpdir/scmroot/kf6-krunner'...
$ git fetch origin e127613e46f3417d1d45d003451703c168acb6a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-krunner
 * [new ref]         e127613e46f3417d1d45d003451703c168acb6a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e127613 6.15 and plasma 3.4 compatibility rebuild