Goddamnit. Forgot that Master codes are also abbreviated as (M).

Ok. NOW  issue 6367 : https://code.google.com/p/dolphin-emu/issues/detail?id=6367 is fixed.

I wish I'd remember these things before committing and not after.

Data/User/GameConfig/GBHEC8.ini

@@ -5,9 +5,6 @@ EmulationStateId = 4
 EmulationIssues = Needs Real xfb for the videos to display.
 [OnFrame]
 [ActionReplay]
-$(m)
-01180C36 88000000
-C4201E68 0000FF00
 $Max Health
 01180C37 08000000
 02264788 0000270F