Thanks for the link to the lost item guide.
It probably is a bug like you say.
Too bad this hasn't been fixed in a patch already.
I don't like to pay a lot of money for a game and then have serious
problems with it.
It's stupid to have to spend much time and effort on workarounds.
It's not really a serious problem, as the garden is only a side quest and has no relevance to the main plot whatsoever.
It's a minor annoyance at best, IMO.
