Incorrect decomposition type for relative number fields #34514
Description
sage: K.<a> = NumberField(x^4 + 18*x^2 - 1)
sage: R.<y> = K[]
sage: L.<b> = K.extension(y^2 + 9*a^3 - 2*a^2 + 162*a - 38)
sage: [L.decomposition_type(i) for i in K.primes_above(3)]
[[(1, 1, 2)], [(1, 1, 2)], [(1, 1, 1)]]
The last triple should be (1, 2, 1).
Component: number fields
Author: David Roe
Branch/Commit: e538c5d
Reviewer: Travis Scrimshaw
Issue created by migration from https://trac.sagemath.org/ticket/34514