[Don't feed the beggers]

another question about the same tool

if I go into another persons farm (to harvest flowers) and water their flowers to harvest these flowers, as soon as they are watered they show as done, so I do em but when I refresh they show that they need anywhere from a few hrs to a day or so to be ready to harvest, but yet yet they showed ready when watered.......not sure if I am explaining it right, as ell I will go into someone farms flowers are already water and it shows them as needing 1 more minute or 2 but you can still harvest em, so you do, go back and they are ready again!!! what's up with this?