This actually isn't the most up to date in the literature. I don't know if this has been settled forever, but the most recent taxonomy has this in Lottia. MB has a bunch of things sourced to InvertEBase that make zero sense. I'm drafting an email to several curators for a lot of fixes, but I didn't flag this one so maybe I should have.
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.
This actually isn't the most up to date in the literature. I don't know if this has been settled forever, but the most recent taxonomy has this in Lottia. MB has a bunch of things sourced to InvertEBase that make zero sense. I'm drafting an email to several curators for a lot of fixes, but I didn't flag this one so maybe I should have.