<lilypond <at> googlecode.com> writes:

> think I've found the problem.  Dot_column::calc_positioning_done, which is  
> chained to dots as an x_parent_positioning callback, calls position_less.   
> This is lethal - it looks up unpure Y extents at a time where they need to  
> be calculated purely.  I have no clue how lilypond survived for so long  
> without this surfacing.
> 

Well, the dots are only calculating their staff-position, the integer that
says which line or space their parent note is on.  I don't know if that is
pure or not, but it seem that it should be known before line-breaking.

Or, I could just removing the piece of code that depends on dots' staff-
position, and I still see bug 2180.


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