Fix EXP-825: check for null gAgentAvatarp to prevent crash (hopefully).
Fix EXP-825: check for null gAgentAvatarp to prevent crash (hopefully).

gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm