$ git clone -n https://src.fedoraproject.org/rpms/kf6-kdnssd.git /var/lib/mock/f40-build-2525277-61810/root/chroot_tmpdir/scmroot/kf6-kdnssd
Cloning into '/var/lib/mock/f40-build-2525277-61810/root/chroot_tmpdir/scmroot/kf6-kdnssd'...
$ git fetch origin fdf4725e11ddf0520e9e256453e7475c89cafdc1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kdnssd
 * [new ref]         fdf4725e11ddf0520e9e256453e7475c89cafdc1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fdf4725 6.0.0