$ git clone -n https://src.fedoraproject.org/rpms/wayvnc.git /var/lib/mock/f40-build-804643-144575/root/chroot_tmpdir/scmroot/wayvnc
Cloning into '/var/lib/mock/f40-build-804643-144575/root/chroot_tmpdir/scmroot/wayvnc'...
$ git fetch origin 79dbd2c96389eb9fbaafe5819ea8a56ebc4d2793:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wayvnc
 * [new ref]         79dbd2c96389eb9fbaafe5819ea8a56ebc4d2793 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 79dbd2c Require neatvnc >= 0.8.0