Fixed a crash in GOselect.

--HG--
branch : trunk

src/bindings/scripts/ScriptMgr.cpp

@@ -2084,6 +2084,8 @@ bool GossipSelectWithCode( Player *player, Creature *_Creature, uint32 sender, u
 TRINITY_DLL_EXPORT
 bool GOSelect( Player *player, GameObject *_GO, uint32 sender, uint32 action )
 {
+    if(!_GO)
+	return false;
     debug_log("TSCR: Gossip selection, sender: %d, action: %d",sender, action);
 
     Script *tmpscript = m_scripts[_GO->GetGOInfo()->ScriptId];
@@ -2096,6 +2098,8 @@ bool GOSelect( Player *player, GameObject *_GO, uint32 sender, uint32 action )
 TRINITY_DLL_EXPORT
 bool GOSelectWithCode( Player *player, GameObject *_GO, uint32 sender, uint32 action, const char* sCode )
 {
+    if(!_GO)
+	return false;
     debug_log("TSCR: Gossip selection, sender: %d, action: %d",sender, action);
 
     Script *tmpscript = m_scripts[_GO->GetGOInfo()->ScriptId];