The row printed the opening date and the printed expiry with nothing between
them. It carries the same middle dot the unit figures use.
The docblock now says out loud what the enum cannot distinguish: AMPOULE
covers both a punctured multi-dose vial, where the post-opening window is
real, and a carton of single-use glass ampoules, where it is not. The kind is
never auto-selected, so picking it is a statement about an opened container,
and the opening date is editable when it turns out not to be.