[ERROR]: Could not find label 'main' in script 'animscripts/zombie_combat'

[SE2Dev]

Occasionally when switching mods users will encounter the following error:

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Steps to Reproduce:
1: Load the game
2: Enter the zombies menu
3: Switch mods

Cause: Entering the zombie menu causes the 'zombiemode' dvar to be set to 1, and exiting the zombie menu does not reset the value to 0. As a result, reloading the map causes several zombiemode assets to be reported as missing.
Priority: Medium

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