Reproduced with Inkscape 0.48.5, 0.91 r13725 and 0.91+devel r14163 on OS X 10.7.5.
The profile with the mangled name not being usable in 'Fill and Stroke' affects mostly trunk (0.48.x and 0.91 at least initially select the profile and show the full set of sliders) seems to be related to the recent merge in r14160.
Reproduced with Inkscape 0.48.5, 0.91 r13725 and 0.91+devel r14163 on OS X 10.7.5.
The profile with the mangled name not being usable in 'Fill and Stroke' affects mostly trunk (0.48.x and 0.91 at least initially select the profile and show the full set of sliders) seems to be related to the recent merge in r14160.