# Conflicts:
#	indra/newview/llviewerregion.cpp

following promotion of DRTVWR-482

Convoluted due to multiple workarounds. Might be a good idea to spend some time refactoring this, but for now just trottled checks.

It is possible for agent to pass multiple region borders fast, resulting in environment updates affecting wrong regions

LLHUDObject has a lot of deriveds stored as LLPointer<LLHUDObject>, no-virtual destructor is unlikely to be cause of the crash, but might be related

LLVOVolume::updateTextures() does not check for null drawable prior to updateTextureVirtualSize

Simplify name generation according to slack discussion, also helps bugsplat with matching files

# Conflicts:
#	indra/newview/llgroupmgr.cpp

following promotion of DRTVWR-497

Due to conflicts picked up ptolemy's fix manually

Merge 6.4.9 into DRTVWR-497

SL-13522 remove injected character lights to improve alpha lighting in edit mode

Approved-by: Michael Pohoreski

following promotion of DRTVWR-503

Character lights injected during render pass while in character edit mode
(i.e. mSpecialRenderMode == 3) were causing discrepencies between deferred
(ALM) and forward alpha blend lighting.