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r6221 | hendricks266 | 2017-06-21 18:32:10 -0700 (Wed, 21 Jun 2017) | 1 line

Polymodes: Only try texcache_fetchmulti on detail texture slots.
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r6220 | hendricks266 | 2017-06-21 18:32:05 -0700 (Wed, 21 Jun 2017) | 3 lines

Polymodes: Check that texture entries have a non-skybox filename before using it in texcache_fetchmulti.

Fixes crash reported by Sgt Jack V.
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