Users can create overlapping staff is present schedule rows

[olli-suutari-jkl]

Since the schedule rows are not validated for overlapping if multiple staff present rows are in succession, this may happen:

Here, 17-21 should obviously be self-service on Tuesday.

When saving, these silly schedules are updated to the database;

[sjuvonen]

I'm phasing out my duties with Kirkanta so I'll just add my comment for further reference.
This problem can be split into two problems: user interface interaction and coherency of data on the API's side.

The first part I would not waste time with, but the consequence is that the API could report somewhat questionable schedules. But this is easy to fix by fixing the schedule definitions on the admin interface. That's why I would just not bother with additional validation or other checks.

In the API documentation it is mentioned that first and foremost librarians are responsible for the data per se and Kirjastot.fi is only a provider of the technical platform...