Currently, if I first download Deck A, and then download Deck B, then any cards that are shared between them are only accessible in Deck A.
However, they should be accessible from both decks, so that if card is due say 3 days from now, then it can be completed by clicking on either Deck A or Deck B. Once it is completed, and is due say 5 days from that time, then it wouldn’t be re-completed on the same day in the different deck.
For example, some decks use cards from a few previous decks and then continue to add more cards to build on those, for their particular topic. So, Deck C may have cards from both Deck A and Deck B, and also its own unique cards. And so, in order to study from Deck C, without this feature, we would have to either figure out which cards from Deck A and B are supposed to be included, or otherwise to delete Decks A and B, redownload Deck C first, and then redownload Decks A and B so that all the cards are present in Deck A. This doesn’t seem to be an adequate/efficient solution for the long term to this issue.
I think this would be a useful feature. Perhaps, it could be incorporated into an addon or otherwise there could be some sort of toggle for it depending on user preference?