[boost] [GGL] Is this a bug, or undocumented behavior?

Subject: [boost] [GGL] Is this a bug, or undocumented behavior?
From: Jonathan Franklin (franklin.jonathan_at_[hidden])
Date: 2009-11-22 18:14:26

I have been running some of my own polygon union test cases on the
union_inserter.  The union_inserter doesn't appear to return a minimal
set.  E.g. if the start point of a polygon appears in the union, it
will appear twice (consecutively).

Is this expected behavior?  If so, it should probably be documented.
I have some other algorithms which expect a sequence of unique points,
so I would need to pre-process the result of this function call.

Thanks,

Jon