$ git clone -n https://src.fedoraproject.org/rpms/ddnet.git /var/lib/mock/f40-build-2191975-51450/root/chroot_tmpdir/scmroot/ddnet
Cloning into '/var/lib/mock/f40-build-2191975-51450/root/chroot_tmpdir/scmroot/ddnet'...
$ git fetch origin 6d934a5883f71be60f1552a16f60b2d6533491e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ddnet
 * [new ref]         6d934a5883f71be60f1552a16f60b2d6533491e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d934a5 try that packit just do one PR but builds and updates for all Fedora