See the discussion there, I'll attach a preliminary patch (untested) for the "root cause". However, this change will break many doctests (see #5428). These are easy to fix, but make necessary a much larger patch (touching more than a dozen files) than the preliminary one.
This is a follow-up ticket to #5428.
See the discussion there, I'll attach a preliminary patch (untested) for the "root cause". However, this change will break many doctests (see #5428). These are easy to fix, but make necessary a much larger patch (touching more than a dozen files) than the preliminary one.
CC: @williamstein
Component: modular forms
Issue created by migration from https://trac.sagemath.org/ticket/5456