Investigate usage of `has_assigned_minor_title`

[schwarherz]

Due to #180 and #181 both dealing with the usage of has_assigned_minor_title its usage needs verified.

Per Silversweeper on the forums:

Based on the latter two issues both having to do with has_assigned_minor_title, I would say that it seems somewhat likely that has_asssigned_minor_title doesn't work as it should (it'd not be the only instance of vanilla code functionality not working as advertised...), which potentially means there are issues elsewhere where that is used (which I can see is a good number of places in CleanSlate). Vanilla only seems to use it in three places, both of them decisions (seek_treatment and employ_court_physician (twice)); whether that's "Known to only work in decisions" or "They didn't bother" is hard to say.