an undo was refused by a before-event handle...

Warnings reference › kanban:undo:vetoed

Identifier

kanban:undo:vetoed

Raised by

Kanban

Since

1.95.0

What happened

Undoing a move or edit writes back through the same path the original change used, so a beforeMove/beforeEdit handler (or the WIP gate) that refuses the inverse also refuses the undo. The card stayed where it was and the step was not popped, so the history is exactly as before the attempt.

The fix

Remove or relax the vetoing handler for that card, or leave the card where it is and undo a later step instead.

The smallest fix

board.on('beforeMove', (ev) => { if (ev.to === 'done') ev.preventDefault('done is closed'); });

Reference

Covered in full at the API reference.