Pallet asset wrong error returns

[Daanvdplas]

I've noticed two scenarios where I'm calling a pallet asset dispatchable and it returns a token error, yet with a similar assets' error in existance:

• mint an asset that does not exist returns DispatchError::Token(UnknownAsset) in stead of pallet assets' Unknown (ref).
• burn greater amount of an asset with Preserve returns Token(FundsUnavailable) in stead of (I would say) BalanceLow, not sure though because we are burning.

Curious to hear what the expected behaviour is since for the second example it was clearly chosen to use the TokenError above the assets' error.

[Polkadot-Forum]

This issue has been mentioned on Polkadot Forum. There might be relevant details there:

https://forum.polkadot.network/t/discussion-treating-changes-in-dispatchable-function-errors-as-breaking-changes/11222/4