$ git clone -n https://src.fedoraproject.org/rpms/kf6-frameworkintegration.git /var/lib/mock/f40-build-788243-135077/root/chroot_tmpdir/scmroot/kf6-frameworkintegration
Cloning into '/var/lib/mock/f40-build-788243-135077/root/chroot_tmpdir/scmroot/kf6-frameworkintegration'...
$ git fetch origin fb6a975c72fc21f432549d35b3acf5b1b158db70:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-frameworkintegration
 * [new ref]         fb6a975c72fc21f432549d35b3acf5b1b158db70 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fb6a975 6.0.0