By naively, I meant without normalization.

You know much more about this than I do though

edit: this is what I mean for example, that `tést` != `tést` in rg, because \ue9 (e with accent) != e\u0301 (e followed by combining character accent)

    $ printf "t\\u00E9st" > /tmp/a 
    $ xxd /tmp/a
    00000000: 74c3 a973 74                             t..st
    $ cat /tmp/a
    tést

    $ printf "te\\u0301st" > /tmp/b 
    $ xxd /tmp/b
    00000000: 7465 cc81 7374                           te..st
    $ cat /tmp/b
    tést

    $ printf "t\\u00E9st" | rg -f - /tmp/a
    1:tést
    $ printf "t\\u00E9st" | rg -f - /tmp/b
    # ed: no result

edit 2: if we normalize the UTF-8, the two strings will match

    $ printf "t\\u00E9st" | uconv -x any-nfc | xxd
    00000000: 74c3 a973 74                             t..st
    $ printf "te\\u0301st" | uconv -x any-nfc | xxd
    00000000: 74c3 a973 74                             t..st

Which you know, and indicate! Just working an example of it that maybe will help people understand, I dunno