[Regression] FT_Render_Glyph returns error when trying to render bitmap (otb) fonts

With Freetype 2.11.0, FT_Render_Glyph returns error (return value != 0) when trying to render bitmap fonts.

This wasn't the case in 2.10.4.

This breaks font rendering in various programs like Alacritty and foot.

Curiously enough, Qt applications also prints errors stating that the glyphs could not be drawn, but the text seems to be rendered properly regardless.

As this worked in 2.10.4, this seems like a regression.

I've tried various otb fonts (Terminus, tewi), all seem to fail.