case insensitive flag not working with replaceAll

[Tyler]

Hi, I'm having issues with the case insensitive flag from the 
phobos regex library (2.064). I have the following line of code 
which returns a string. Consider the following inputs...
fileLine = "policy PRI-GROUPJ-EXPORT"
redTerm = "groupj"

   auto newString = replaceAll!(replaceTerm)(fileLine, 
regex(redTerm, "gi"));

The code will not match the redTerm "groupj", even though I have 
the case insensitive flag "i" set. If the redTerm text is 
"GROUPJ", it will match and return the correctly modified string.

Am I using this incorrectly?