Issue Summary

We show an error that doesn't explain the root cause in the following scenario:

If two boards have a Dropdown field with the same name, and a user tries to move a card to the board whose Dropdown field already has 50 options.

Steps to Reproduce

1. Have two boards
2. Add a dropdown custom field with the same name to each board
3. Add 50 options to the dropdown field on board 2
4. Create a card on board 2, and select an option from that dropdown field in that card
5. On board 1, add at least 1 option to the dropdown field that is different from the 50 options on board 2
6. Create a card on board 1, and select that 1 different option
7. Move or copy the card from board 1 to board 2

Expected Results

The error message tells us:

You have too many custom field options in the {board_2_dropdown_field_name} dropdown on {board_2_name}. Delete some to add more.

Actual Results

The error message tells us:

You have too many custom fields on "{board_2_name}". Delete some to add more.

Workaround

The workaround is to delete options from the dropdown from board 2, or to rename the custom field so the move/copy action doesn't try to add the 51st option to the dropdown on the target board.

However, based on the error message, the customer cannot figure that out since the message directs them to delete custom fields from the board instead of dropdown options from the field that has reached its limit.