Comment 6 for bug 1506715

The problem seems to appear with any object... It doesn't matter how big, or if it is rotated. It only depends on parts of the object being outside the visible area.

So far, I got the partial filling now with an object that crosses two opposite borders, too (which is the correct behaviour, according to the manual). But zooming in a little more, and 'area is not bounded'.

Just click into the middle of the visible part of the rectangle in page zoom (numpad 5) in the appended file (just in case it could be relevant: my screen resolution is 1280:1024, using Inkscape in normal full window mode).
An 'after' file doesn't make much sense imho, because really nothing happens.