Tip To help ensure you get to repeat a repeatable quest..
Basically if you finish a questline when Not on your farm, AKA by getting the last "ask for" item that you need, Its possible you won't get to repeat the questline, because of how the game does things.
A simple thing you can do to maybe help your chances of repeating the questline.
Don't Finish the 2nd or 3rd Part of the Quest until you have all of the needed "ask for" items
Basically leave 1 crop plot unharvested, or not finishing a craft. Here are a few images that maybe are helpful.
Its also best to not try to finish the quest right when loading the farm, Let all the icons on the side of the farm come up and all that jazz.
This won't make sure you ALWAYS get to repeat, but it will improve your odds. I've tested it fairly in depth.