subject with no lessons in the search results has checkbox checked

[danshaman05]

Subject shouldn't be in search results if it doesn't have any lessons, or at least it should not have checkbox in that case.

(Note, that checkboxes are displayed only if the user is logged in and his timetable is opened.)

[mrshu]

I would indeed table this for later.

How does thi even happen though? Isn't it the same subject?