SDL_ttf and embedded bitmap problem

Hi,
I trying to render font containing embedded bitmap using SDL_ttf,
but it rendered strange character.

It rendered correctly when

fix to
error = FT_Load_Glyph( face, cached->index, FT_LOAD_NO_BITMAP );

from line 420 in SDL_ttf(ver 2.0.6),
error = FT_Load_Glyph( face, cached->index, FT_LOAD_DEFAULT );

Is this the correct behavior?–
Nakamura