fix more code that relied on pol(x,y,...) ∈ wrong parent (2)

Author: mezzarobba

src/sage/schemes/toric/points.py

@@ -849,7 +849,7 @@ def inhomogeneous_equations(self, ring, nonzero_coordinates, cokernel):
         z = [ring.zero()] * nrays
         for i, value in zip(nonzero_coordinates, z_nonzero):
             z[i] = value
-        return [poly(z) for poly in self.polynomials]
+        return [poly.change_ring(ring)(z) for poly in self.polynomials]
 
     def solutions_serial(self, inhomogeneous_equations, log_range):
         """