id,summary,reporter,owner,description,type,status,priority,milestone,component,resolution,keywords,cc,work_issues,upstream,reviewer,author,merged,dependencies,stopgaps
10086,Coercion works incorrectly for power series over power series,schilly,sage-combinat,"This was reported via the ""Report a Problem"" link:

When I try the following:
{{{
S1 = LazyPowerSeriesRing(ZZ)
S2 = LazyPowerSeriesRing(S1)

t = S1.term(1, 1) # same results with t = S1.gen()
tt = S2(t)
tt.coefficient(0)
}}}
this yields 0. Trying
{{{
tt.aorder
}}}
I get 1.

The series tt is the series with constant term equal to t, so its order should be zero and its 0th coefficient should be t.	",defect,new,major,sage-5.10,combinatorics,,,axel.bacher@… mhansen,,N/A,,,,,