[lifthrasiir]

I think you have mistaken "normalization rules" in this context with Unicode normalization algorithms. I'm specifically talking about documents like [1], which are essentially more detailed and concrete versions of the original Han-unification rules.

(Note that normalization rules themselves are distinct from the eventual unification. It takes further works to actually decide whether the unification is possible or not.)

[1] https://appsrv.cse.cuhk.edu.hk/~irg/irg/irg53/IRGN2420_KRNor...