Server has not access to tag when rejecting literal

[jakoschiko]

Scenario:

• Server is decoding a Command.
• Decoding fails with DecodeError::LiteralFound.
• Server wants to reject the literal because the literal is too large.

In order to reject the literal, the server needs access to the Tag. But currently the Tag is only part of the Command and the Command is not accessible because decoding failed.

Is there any workaround for this?