[Bug 108824] Invalid handling when GL buffer is bound on one context and invalidated on another

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108824

--- Comment #10 from Pierre-Eric Pelloux-Prayer <pelloux at gmail.com> ---
(In reply to Baldur Karlsson from comment #7)
> To repro with RenderDoc:
> 
> * Download or build RenderDoc 1.4
> * Build gears3d from https://github.com/gears3d/gears3d
> * Launch gears3d through RenderDoc, capture, open the frame
> * Step back and forth through the drawcalls and the texture viewer will show
> up with some corruption.
> 
> Screenshot here: https://i.imgur.com/1Dk7diS.png

I tried to reproduce the issue and actually had 2 different issues:
- before 12bf7cfecf52083c484602f971738475edfe497e: the rendering is corrupted
as described above. Reverting 78e35df52aa2f7d770f929a0866a0faa89c261a9 fixes
the rendering.

- starting from 12bf7cfecf52083c484602f971738475edfe497e: the rendering is
corrupted and wrong: I only see the red gear, the green/blue ones are never
drawn

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