ff22be1110
If we didn't EmitPrimitive() then the shadow (old) outputs would not get copied to the emit temps (to eventually be copied back to the real outputs. This isn't so bad except that means the realy vertex_flags output has an undefined value. Signed-off-by: Rob Clark <robdclark@chromium.org> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17341>