#30 multi-line text with empty lines renders incorrectly

[Silverstein]

Multi-line text that contains empty lines (i.e. lines with only \n) do not render correctly. For the empty line one sees a small rectangle followed on the same line by text from the NEXT line, and then on the next line the correct text (again). So the text "caption\n\nwith blank line" appears like:

caption
[]with blank line
with blank line

This is with 213rc5 using a FTGLPixmapFont font and FTSimpleLayout on Linux. See attached image. The top one is how it should appear (I added a space to the empty line) and the bottom is the current bad behavior.

[Silverstein]

Image of bad empty line rendering