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  • Default User Avatar

    If you replace them with uppercase letters from the start will cause issue's.

    Example: 'TTTA'

    on the first replace to 'TTTT'
    on the second replace to 'AAAA'

    by keeping them lowercase you kind mark those that has already been replaced, then you just need to uppercase it to get it correct

  • Default User Avatar

    Why not replace them with the uppercase letters by default?