Scope of \DeclareExtradate and labeldate option

[matteofg]

Is there a reason why \DeclareExtradate is not settable on a per-type scope?

Correctly, biblatex manual says:

Care should therefore be taken to synchronise the printed information with the extradate disambiguation settings.

Therefore, it would be appropriate to be able to set both \DeclareExtradate command and labeldate option on a per-type scope.

[plk]

A few reasons - firstly, nobody has every asked for it, secondly, it would likely cause more issues that it solves as the generation of extradate wouldn't be obviously related to fields in all entries. Thirdly, people tend to use the sourcemapping feature to ensure that every entry has the required date for extradate so that type-specific settings aren't required ....