Fractal view: unnecessarily rendered unknown generations

[MichalVasut]

When there is unknown profile in the Fractal View, it renders connecting line without the profile panel - still good here. When we show next generation, it continues to render lines - this isn't imho necessary.

Proposed solution:

• render only 1st generation line of unknown profile (possibly with question mark icon at the end and don't continue in rendering lines for its ancestors.