order-duplicate

[wizzard] order names "<id>" more than once. A step has one position in order, and next() and back()
find their way from it. Keep one occurrence of <id>. …/errors/order-duplicate

Returned by validateFlow as a problem with path: order, and listed in the message of flow-invalid by assertFlow.

A step is one place in the flow, and its position in order is how next() and back() find what comes after and before it. An id that appears twice has two positions, so the walk from it is ambiguous. The usual cause is a merge or a generator that appended a step already present.

Keep one occurrence of each id. To go through the same content once per item of a list, use a repeat group, described in the flow guide.