XCode source files in alphabetical order as in 0.9.8

[dimitre]

Hello, first of all I'm not sure if this is a projectGenerator issue:
Using 0.9.8 I used to have XCode projects with the list of source files ordered in alphabetical which is faster to find the right files (at least for me) and it would be great to be able to do the same in 0.10.0 too.
Cheers!