[12793] Fix static analysis repeated expression performance warning (1)

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Автор: stfx


<pre style='white-space:pre-wrap;width:81ex'>[12793] Fix static analysis repeated expression performance warning (1)</pre>


Подробнее... (https://github.com/cmangos/mangos-wotlk/commit/2a68a3de4c259685cd4eedd663325ac4be5cda69)