Handle case where list is moved out / in the board

[nicoespeon]

Use case

1. Move a list full of cards out of the board.
2. Archive an item from the list
3. Move this list back into the board
4. Enlarge the selected period to go beyond the creation date of card you archived
5. CFD is not what you expect, you should see negative values appears

Here is an example in which the Backlog was moved and empty in another board before we took it back to the one we're analyzing:

[nicoespeon]

I tried to reproduce this bug without success.

I don't know what caused the reported bug but it's not because of moved lists. The CFD handles these actions properly. My hypothesis: the list has not been replaced at the same position in the board. But I won't fix such case for now, that's not something you would expect from a Kanban board.

Plus, I don't have access to the board in which the bug was reported anymore. So there is nothing that I can do for now 😕

I'm closing it. Will see if it gets reported in the future.

[nicoespeon]

Finally did manage to reproduce the issue in the demo board.

That occurred while:

• archiving some cards when list was out of the board
• enlarging the selected period to go beyond the creation date of archived cards

I updated the use case of this issue accordingly.