When using a bitmap font like Terminus or Tamsyn some lines of text are positioned incorrectly and partly cut off.

Reproducible: Always

Steps to Reproduce:
1. Select a bitmap font in Konsole.
2. Open 'man unicode'.
Actual Results:  
Some lines are positioned incorrectly and partly cut off.

Expected Results:  
Every line should be displayed correctly.

Of course it's not limited to man pages. Enabling Bi-Di text changes the position from too low to too high, which is just as bad. Sufficiently high Line Spacing makes the whole line visible but still not correct. Curiously when moving the text cursor on a bad line, letters left of the cursor change position to correct one.