Bug or bad wording?

I don't know which board would be best for this, so this one will have to do.

There is some inconsistent, confusing wording: when a female is in heat "for 1 rollover", she will still be in heat after next rollover (her info will change to "in heat for 0 rollovers"). But when a wolf gets cured and is immune to illness "for 1 rollover", he is only immune until next rollover. Here's some entries in my userlog documenting my lead getting sick for 3 days in a row:

Exploring and rolled in poop: Leareth seems to be exhibiting some new symptoms of illness. Better take him to the Herbalist! 2020-12-22 19:51:14
Gave Medicine: Diarrhea Cure to Leareth (#1046770) and cured Diarrhea. 2020-12-21 01:16:53
Gave Medicine: Fleas Remedy to Leareth (#1046770) and cured Fleas. 2020-12-20 19:04:14

(They are in reverse order, the third one I waited until rollover to cure so he has immunity longer)

So is this a bug or just inconsistency in wording?

The wording is weird but it is not a bug. Females are in heat for four roll overs (including day 0) and cured wolves are immune to illnesses for an entire roll over. :)

Is an entire rollover equivalent to one day?