union of a circle and a square creates curves - not arcs

[mohis]

If I create a circle, it is stored as a path consisting of two semicircular arcs. However, if I create a union of a circle and a square, the result is not exact path consisting of arcs and lines but an approximation consisting of bezier curves and lines. Some accuracy is lost in the process unnecessarily?

[Heinrich Schuchardt (xypron)]

See Bug 653315

[su_v (suv-lp)]

Fixed for boolops in Inkscape 0.91 - arc path commands are preserved as far as possible when unioning e.g. a circle and a rectangle. Node-editing such a path will still convert the arcs to an approximation with cubic bézier curves.