BUG #14464. Fix isssue with specular highlights settings.

The setting was not necessarily being used to set defaults in all cases. Fixed
that.

Change-Id: Ie292d8fa3fcefd86144d20dcb972cb400f117382
Merge topic '14464_fix_specular_highlights' into next

54b37bc BUG #14464. Fix isssue with specular highlights settings.