.coefficients() for EisensteinSeries does not return requested coefficients

[mwhansen]

sage: e = G.gen()
sage: E = EisensteinForms(e, 3)
sage: v = E.eisenstein_series()
sage: f = v[0]
sage: f
15/11*zeta10^3 - 9/11*zeta10^2 - 26/11*zeta10 - 10/11 + q + (4*zeta10 + 1)*q^2 + (-9*zeta10^3 + 1)*q^3 + (16*zeta10^2 + 4*zeta10 + 1)*q^4 + (25*zeta10^3 - 25*zeta10^2 + 25*zeta10 - 24)*q^5 + O(q^6)
sage: f.coefficients([0,1,2,3,4])

[15/11*zeta10^3 - 9/11*zeta10^2 - 26/11*zeta10 - 10/11,
 1,
 4*zeta10 + 1,
 -9*zeta10^3 + 1,
 16*zeta10^2 + 4*zeta10 + 1]
sage: f.coefficients([0,1,2,3,4])
[15/11*zeta10^3 - 9/11*zeta10^2 - 26/11*zeta10 - 10/11]

Component: modular forms

Issue created by migration from https://trac.sagemath.org/ticket/691

[mwhansen]

comment:2

Patch attached.

[mwhansen]

comment:3

Actually, there is a problem with f._compute. Ignore the above patch for now.

[mwhansen]

Attachment: 691.patch.gz

[mwhansen]

comment:4

Attachment: 691.2.patch.gz

Patch attached which fixes the issues.