Consiglio G, Setti L, Thorn RG. New species of Hohenbuehelia, with comments on the Hohenbuehelia atrocoerulea - Nematoctonus robustus species complex. Persoonia. 2018 Dec;41:202-212. doi: 10.3767/persoonia.2018.41.10. Epub 2018 Aug 13. PMID: 30728605; PMCID: PMC6344808. (Link)
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.