As reported in #32782 comment:8, PARI's qfbsolve() does not work with quadratic forms whose discriminant is a square integer.

This currently triggers failures in random testing, but it is not a regression: BinaryQF.solve_integer() used to reject all positive discriminants prior to #32782.

Depends on #33057

CC: @collares @slel @DaveWitteMorris

Component: quadratic forms

Author: Lorenz Panny

Branch/Commit: 5e8a2a3

Reviewer: Vincent Delecroix

Issue created by migration from https://trac.sagemath.org/ticket/33026