$ git clone -n https://src.fedoraproject.org/rpms/kanagram.git /var/lib/mock/f40-build-2103978-50565/root/chroot_tmpdir/scmroot/kanagram
Cloning into '/var/lib/mock/f40-build-2103978-50565/root/chroot_tmpdir/scmroot/kanagram'...
$ git fetch origin cdf6a8e55c203968793c7dc2937dc15a294e7542:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kanagram
 * [new ref]         cdf6a8e55c203968793c7dc2937dc15a294e7542 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cdf6a8e another kf5->kf6 typo fix