multi-codepoint support seems to throw things when it shouldn’t

[binki]

http://jsfiddle.net/binki/0ykdxq6b/8/ , I get exceptions in places when I define a custom language as

lasca.setLanguage({key: 'binki_ridik_ab', collation: '0061+00620063', compare: 'multi'})

and try to compare cab and cc. That fiddle is against db5d3806f4b5224b0f2e80704288a2d3c4d1dc60.