DEV-34299 - VWR-13996: Avatars are invisible, except for attachments

One-line fix for a very old bug. Bug was hunted and fixed by resident Aleric Inglewood. Code reviewed by Nyx. Patch is a one-off, de minimis change. Contact Nyx if any problems with this code.

 -Nyx

doc/contributions.txt

@@ -44,6 +44,7 @@ Aleric Inglewood
 	VWR-10001
 	VWR-10759
 	VWR-10837
+	VWR-13996
 Ales Beaumont
     VWR-9352
 Alissa Sabre

indra/newview/llspatialpartition.cpp

@@ -577,7 +577,7 @@ void LLSpatialPartition::rebuildGeom(LLSpatialGroup* group)
 		return;
 	}
 
-	if (group->changeLOD())
+	if (!LLPipeline::sSkipUpdate && group->changeLOD())
 	{
 		group->mLastUpdateDistance = group->mDistance;
 		group->mLastUpdateViewAngle = group->mViewAngle;