Example GalRep_galrep-precision (H58E48)

> K:=pAdicField(5,20);
> R<x>:=PolynomialRing(K);
> A:=GaloisRepresentations(x^4-5)[3];
> A;
1-dim Galois representation (1,1,-1,-1) with G=C4, I=C4, conductor 5^1
   over Q5[20]
> Precision(A);
20
> ChangePrecision(~A,40);
> Precision(A);
40
> ChangePrecision(A,20);
1-dim Galois representation (1,1,-1,-1) with G=C4, I=C4, conductor 5^1
   over Q5[20]