#7085: fix this laurent series coercion bug
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   Reporter:  was               |       Owner:  somebody    
       Type:  defect            |      Status:  needs_review
   Priority:  major             |   Milestone:  sage-4.6.1  
  Component:  basic arithmetic  |    Keywords:              
     Author:                    |    Upstream:  N/A         
   Reviewer:                    |      Merged:              
Work_issues:                    |  
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Comment(by wjp):

 I suspect the prolem is that
 {{{laurent_series_ring_element.LaurentSeries.__init__}}} doesn't realize
 that the base ring may be a LaurentSeriesRing itself. (But I haven't
 thought about it too much yet.)

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7085#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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