DRY? Why select_date and select_date?

Why select_date and select_date?
I dont understand why having both (backward compat?).
I also look that their source are different, one use the InstanceTag
and others calls 3 select_(year, month, day) functions.

Rafael Cardoso wrote:

Why select_date and select_date?
I dont understand why having both (backward compat?).
I also look that their source are different, one use the InstanceTag
and others calls 3 select_(year, month, day) functions.

select_date only returns the selects, where date_select binds itself to
an object.