[Bug]: Unable to cancel unbonding delegation of jailed validators

[anilcse]

Is there an existing issue for this?

• I have searched the existing issues

What happened?

I tried to cancel an unbond delegation from jailed validator, it is failing with error failed to execute message; message index: 0: validator for this address is currently jailed. I don't see any supporting description in the requirements to consider this as an expected behaviour.

Cosmos SDK Version

0.47, 0.50, main

How to reproduce?

• Undelegate from jailed validator
• Cancel unbonding delegation

[alexanderbez]

Unclear if this is expected behavior or not. Need to dig up the original PR and see what the context was.

[likhita-809]

In the original implementation of cancel unbonding delegation, we intended to return error on cancel unbonding delegation for jailed validator. Although I couldn't find any description describing this behaviour. Either we should make clear docs on this or add a feature supporting this issue.
https://github.com/cosmos/cosmos-sdk/pull/10885/files#diff-5ea92aa6ab2a6d865b7641169f4a530e3ec4121e427e4bc292666fec403244daR423-R425
cc: @alexanderbez

[alexanderbez]

Personally, I would like to see a strong case to be made to support this feature.

Otherwise, we should just update documentation to make it clear that this is NOT supported. WDYT @likhita-809?