old issue reborn

[taurus]

Dunno if it makes sense to report a bug, while a complete change of codebase takes place, but I recently recognized an issue, I described somewhere in the past. It was fixed and now it appeared in the main window again. It is about a black spot within the gradient, that isn't intended. It makes no difference, if you edit the node manually or even replace the false node with a text editor in the fract file. When hitting render, the black spot reappears in the gradient. Most of the time it is harmless, but there ar also cases, where the spot leads to ugly voids in the fractal. Attached a screenshot with the main window, showing the unwanted color.