Break the selected segment(s), resulting in two segments of the same
type separated by a gap. The geometric location of the break cannot be
influenced by the user. It is possible to process the
the new segments further.
The segment(s) which is(are) to be broken is(are) indicated by selecting its(their) blue control points.
If the segments of a path component is broken, the identity of the
component is maintained. If a line, arc or circle component is broken, this
will lead to the creation of a new path and the original component is removed.