[12859] Fix possible crash due to null pointer dereference

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Автор: stfx


<pre style='white-space:pre-wrap;width:81ex'>[12859] Fix possible crash due to null pointer dereference</pre>


Подробнее... (https://github.com/cmangos/mangos-wotlk/commit/64b357001f0e72f1fc0cdca75400e0178bb4961c)