How am I misreading the help file?

lcString = 'abracadabra'
? StrTran(lcString, 'A', 'x', 1, 500, 3)
xbrxcxdxbrx

A Flag parameter of 3 is supposed to mean -

1. Case insensitive search - this seems to work properly
2. Change the case of the replacement parameter ('x') to agree with the case of the search parameter ('A').

Shouldn't it be returning XbfXcXdXbfX?

Alan