[11920] Fix possible crash when trying to add playerto group who is not in world

[newsbot]

Автор:


<pre>m src/game/Group.cpp
m src/game/ObjectAccessor.cpp
m src/game/ObjectAccessor.h
m src/game/ObjectMgr.h
m src/shared/revision_nr.h
</pre>
<pre style='white-space:pre-wrap;width:81ex'>[11920] Fix possible crash when trying to add playerto group who is not in world

Signed-off-by: Schmoozerd <schmoozerd@scriptdev2.com></pre>


Подробнее... (https://github.com/mangos/mangos/commit/1f96ccdfe24ffedd9eb303f73f5985a3a127e203)