Periodic Client XTargeting crash w/bots and large pulls

[irongut_av]

I have the latest source, and see an infrequent crash in some zones when the bot owner client aggro list gets large. Client::AddAutoXTarget has a comment that "IT IS NOT SAFE TO CALL THIS IF IT'S NOT INITIAL AGGRO", perhaps with bots and large pulls / train of mobs pushes the iterator too high.

[11-13-2018 :: 23:57:32] [Crash] EXCEPTION_ACCESS_VIOLATION
...

[11-13-2018 :: 23:57:33] [Crash] g:\eq\server\zone\client.cpp (7376): Client::AddAutoXTarget 
[11-13-2018 :: 23:57:33] [Crash] g:\eq\server\zone\attack.cpp (2993): Mob::AddToHateList 
[11-13-2018 :: 23:57:33] [Crash] g:\eq\server\zone\aggro.cpp (520): EntityList::AIYellForHelp 
[11-13-2018 :: 23:57:33] [Crash] g:\eq\server\zone\npc.cpp (815): NPC::Process 
[11-13-2018 :: 23:57:33] [Crash] g:\eq\server\zone\entity.cpp (487): EntityList::MobProcess 
[11-13-2018 :: 23:57:33] [Crash] g:\eq\server\zone\net.cpp (511): <lambda_1c9bf3832c89b368be380b0fbdc8d329>::operator() 
[11-13-2018 :: 23:57:33] [Crash] c:\program files (x86)\microsoft visual studio\2017\professional\vc\tools\msvc\14.15.26726\include\functional (15732480): std::_Func_impl_no_alloc<<lambda_1c9bf3832c89b368be380b0fbdc8d329>,void,EQ::Timer *>::_Do_call 
[11-13-2018 :: 23:57:33] [Crash] g:\eq\server\common\event\timer.h (39): <lambda_4a62a3c5557233412b20b69a12aafc23>::<lambda_invoker_cdecl> 
[11-13-2018 :: 23:57:33] [Crash] g:\eq\server\libs\libuv\src\win\timer.c (193): uv_process_timers 
[11-13-2018 :: 23:57:33] [Crash] g:\eq\server\libs\libuv\src\win\core.c (496): uv_run 
[11-13-2018 :: 23:57:33] [Crash] g:\eq\server\zone\net.cpp (538): main 
[11-13-2018 :: 23:57:33] [Crash] f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl (288): __scrt_common_main_seh 
[11-13-2018 :: 23:57:33] [Crash] ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 7664343D) 
[11-13-2018 :: 23:57:33] [Crash] 7664343D (kernel32): (filename not available): BaseThreadInitThunk 
[11-13-2018 :: 23:57:33] [Crash] ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 77479802) 
[11-13-2018 :: 23:57:33] [Crash] 77479802 (ntdll): (filename not available): RtlInitializeExceptionChain 
[11-13-2018 :: 23:57:33] [Crash] ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 774797D5) 
[11-13-2018 :: 23:57:33] [Crash] 774797D5 (ntdll): (filename not available): RtlInitializeExceptionChain