Unintended disagreements occur when a parent (B) is
thinned by swapping a child (E) to another part of the
taxonomic tree, resulting in existing IDs of the parent being interpreted
as disagreements with existing IDs of the swapped child.
Identification
ID 2 of taxon E will be an unintended disagreement with ID 1 of taxon B after the taxon swap
If thinning a parent results in more than 10 unintended disagreements, you
should split the parent after swapping the child to replace existing IDs
of the parent (B) with IDs that don't disagree.
@kokhuitan, the guidelines for committing taxon swaps currently instructs us to ignore ferns. Please flag the taxon and engage fern taxonomists among the iNat community and come to a rough consensus before committing fern taxon swaps based on POWO. https://www.inaturalist.org/projects/inaturalist-vascular-plant-working-group/journal
previous flag https://www.inaturalist.org/flags/98772