https://issues.dlang.org/show_bug.cgi?id=13410
--- Comment #13 from safety0ff.bugz <safety0ff.b...@gmail.com> --- (In reply to Ketmar Dark from comment #12) > cache bookkeeping turns on only when the code used byKey/byValue at least > once (i.e. directly or in foreach loop). this is not that frequent > operations for AAs. Ah, okay, I missed that it wasn't always on. --