Another integral affected by this change:

(1) -> integrate(1/sqrt(1 + b*sec(x))^3,x)

   >> Error detected within library code:
   RadicalFunctionField: curve is not irreducible

It worked in 1.2.7.

A simple change can make most of these problems go away,
but as discussed before, there's a better solution.

diff --git a/src/algebra/pfo.spad b/src/algebra/pfo.spad
index 816fe22..5904fee 100644
--- a/src/algebra/pfo.spad
+++ b/src/algebra/pfo.spad
@@ -235,7 +235,7 @@ FunctionSpaceReduce(R, F) : Exports == Implementation where
     K2Z : K -> F

     redmap := table()$AssociationList(K, Z)
-    nn : Integer := 1
+    nn : Integer := 10^6

     newReduc(n) ==
       nn := n

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