Rpcs3: [Regression] Purple overlay Issue

[Xcedf]

A year old regression. In most insomniac games and maybe oter games some parts or surfaces may be covered with purple overlay. Used Resistance 1 Demo as a testcase. The regression itself comes from #3200, commit d54c2dd3 but commit itself to complex for me to investigate, however i found some other commit that affects this 142bfb52 and changing line 2431 of RSXThread.cpp in current code
from vertex_push_buffers[index].vertex_count > 1)
to vertex_push_buffers[index].vertex_count > 0)
do this
before (hud and crosshair are purrple)

after (badly visible but normal colored)

[kd-11]

At first the seemingly broken graphics threw me off, but watching demo footage on real hw, it seems that the purple overlay is the only major issue. I'm looking into it.

[kd-11]

Yea, confirmed to be a single byte ordering bug. The other 'issues' like the black stairway at the start of the demo are actually the same on real hw. Fix incoming ASAP.

[kd-11]

Fixed by https://github.com/RPCS3/rpcs3/pull/5047