ValueError when overriding parameters in Parameterized inheritance

Param
1

The following example will throw a ValueError because the x parameter is inheriting bounds from the superclass:

import param as pm
import panel as pn
pn.extension()

class A(pm.Parameterized):
    x = pm.Magnitude(0.5)

class B(A):
    x = pm.Integer(10)

pn.panel(B)

This can be solved by setting the bounds explicitly on class B:

import param as pm
import panel as pn
pn.extension()

class A(pm.Parameterized):
    x = pm.Magnitude(0.5)

class B(A):
    x = pm.Integer(10, bounds=(None,None))

pn.panel(B)

I would expect that this could additionally be solved by some usage of instantiate=True or per_instance=True, but I couldn’t find any usage of those arguments to resolve the behavior, and I don’t fully understand those parameter arguments.

Would you consider the observed behaviour a bug or is it expected and why? Can anyone share insight on the per_instance and instantiate parameter metadata? I don’t fully understand their usages after reading the documentation here: Parameters and Parameterized objects — param v1.13.0

Thanks!