Code review comment for lp:~thumper/unity/regional-damage-sru

Ok, thanks to the Sam's tip, I got the proper fix for the crash that was affecting the nvidia cards (using the nvidia driver).

I've made a branch that fixes this, and that uses this one as prerequisite: lp:~3v1n0/unity/fix-nvidia-glDrawArrays-crash-5.0/+merge/117553

So, at this point I can approve this branch too.