1 files changed, 27 insertions, 9 deletions

diff --git a/indra/newview/llviewermessage.cpp b/indra/newview/llviewermessage.cpp
index 26d40436e9..dde4897ab7 100644
--- a/indra/newview/llviewermessage.cpp
+++ b/indra/newview/llviewermessage.cpp
@@ -421,7 +421,26 @@ void send_complete_agent_movement(const LLHost& sim_host)
     msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
     msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
     msg->addU32Fast(_PREHASH_CircuitCode, msg->mOurCircuitCode);
-    msg->sendReliable(sim_host);
+
+    // build a lambda to be used as callback on ACK or timeout
+    void (*complete_agent_movement_callback)(void**, S32) = [](void**, S32 result)
+    {
+        if(LLApp::isExiting()) return;
+        if (result != LL_ERR_NOERR)
+        {
+            LL_WARNS("Messaging") << "CompleteAgentMovement failed with err=" << result << LL_ENDL;
+        }
+    };
+
+    // We use same retry strategy as UseCircuitCode because this is a crucial message
+    // that MUST arrive else we'll suffer a failed login/teleport/region-cross
+    msg->sendReliable(
+        sim_host,
+        gSavedSettings.getS32("UseCircuitCodeMaxRetries"),
+        false,
+        (F32Seconds)gSavedSettings.getF32("UseCircuitCodeTimeout"),
+        complete_agent_movement_callback,
+        NULL);
 }
 
 void process_logout_reply(LLMessageSystem* msg, void**)
@@ -2442,6 +2461,8 @@ void process_chat_from_simulator(LLMessageSystem *msg, void **user_data)
 
         color.setVec(1.f,1.f,1.f,1.f);
         msg->getStringFast(_PREHASH_ChatData, _PREHASH_Message, mesg);
+        // Preserve tabs from scripts by expanding them to spaces before any sanitization/formatting.
+        LLStringUtil::replaceTabsWithSpaces(mesg, 4);
 
         bool ircstyle = false;
 
@@ -3759,9 +3780,7 @@ void process_sound_trigger(LLMessageSystem *msg, void **)
 {
     if (!gAudiop)
     {
-#if !LL_LINUX
         LL_WARNS("AudioEngine") << "LLAudioEngine instance doesn't exist!" << LL_ENDL;
-#endif
         return;
     }
 
@@ -3833,9 +3852,7 @@ void process_preload_sound(LLMessageSystem *msg, void **user_data)
 {
     if (!gAudiop)
     {
-#if !LL_LINUX
         LL_WARNS("AudioEngine") << "LLAudioEngine instance doesn't exist!" << LL_ENDL;
-#endif
         return;
     }
 
@@ -4184,11 +4201,12 @@ void process_avatar_appearance(LLMessageSystem *mesgsys, void **user_data)
     if (avatarp)
     {
         avatarp->processAvatarAppearance( mesgsys );
+        return;
     }
-    else
-    {
-        LL_WARNS("Messaging") << "avatar_appearance sent for unknown avatar " << uuid << LL_ENDL;
-    }
+    // The avatar object doesn't exist yet.
+    // We will re-request its appearance data after it is created.
+    LLVOAvatar::registerEarlyAppearance(uuid);
+    LL_WARNS("Messaging") << "AvatarAppearance received for avatar " << uuid << " before object created" << LL_ENDL;
 }
 
 void process_camera_constraint(LLMessageSystem *mesgsys, void **user_data)