Steps To Reproduce

B = crystals.Tableaux(['A',5],shape=[3,2,1])

cta = B.cartan_type().subtype([1,2,3]) # has expected class <class 'sage.combinat.root_system.type_A.CartanType'>
ctb = B.cartan_type().subtype([2,3]) # has different class <class 'sage.combinat.root_system.type_relabel.CartanType_finite_with_superclass'>

type(cta),type(ctb),type(B.cartan_type()) # check

Expected Behavior

Expected type(cta),type(ctb),type(B.cartan_type()) to agree

Actual Behavior

The type of the subtype depends on the (sub) interval (of the Dynkin diagram) defining it.

Additional Information

No response

Environment

- **OS**: 13.4.1 (c)
- **Sage Version**: 10.0

Checklist

• I have searched the existing issues for a bug report that matches the one I want to file, without success.
• I have read the documentation and troubleshoot guide