FcPattern contained in struct XftFont generated via XftFontOpenName function has type mismatch

[Lucien Gentis]

Hello,

XftFontOpenName function returns a XftFont structure that contains an 
FcPattern.

Since 2.13.1-2 version of libxft, FC_WEIGHT property of this FcPattern 
has type FcTypeDouble instead of FcTypeInteger as expected in 
/usr/include/fontconfig/fontconfig.h and it was the case with 2.13.1-1 
version.

I don't know if it's a bug or expected behavior.