Git ec746571 introduced the following artifact:

• Start circle tool, center and radius
• Click on point to select radius
• Circle appears, along with a line to the coordinate system origin; also circle is not closed at around where this ghost line hits the circle entity
• Happens with any circle tool, in slightly different manners
• Doesn't happen with any other tool, as far as I can tell

100% reproducible, doesn't happen on git 6171094d.

This ghost line is also added to existing circles; ie. opening a drawing that has circles, a ghost line is attached to each of them. Not always pointing to the origin, but seems kind of random (changes with zoom level etc.)

It doesn't seem to be a part of the drawing as such, as in ZA will not zoom so that all these ghost lines are fully visible, but the visual artifact remains.

If relevant: Linux/amd64 (Ubuntu 12.04), Qt 4.8.1, GCC 4.6.3, and as said, QCAD git ec746571.

Lines on attached illustration were not actually drawn in any way, shape or form; also they behave as if a particular line and its corresponding circle were a block, except one end of the line is firmly attached to origin.