may we please have all the anchorings filled by the propagation

[PolarBean]

When there are empty anchorings it leads to a lot of difficulty downstream in pynutil since we may incomplete anchorings, and incomplete segmentations. It has the opportunity to silently fail not quantifying the full brain as people might expect.

[PolarBean]

Furthermore, since we no longer require exporting overlays for webnutil (which did output all the sections) this would make the behaviour consistent.

[Tevemadar]

Some of those difficulties may go away if pynutil considers including the propagation code from https://github.com/Tevemadar/QuickNII-extras/tree/master/Python
Fresh from the oven, with a brand new bug fix, and the capability to take section numbers from the _s123 part of filenames (optionally existing nr field takes precedence).

[PolarBean]

oh thats very useful, also for DeepSlice. Thank you