Lefkowitz EJ, Dempsey DM, Hendrickson RC, Orton RJ, Siddell SG, and Smith DB. "Virus taxonomy: the database of the International Committee on Taxonomy of Viruses (ICTV)". Nucleic Acids Research, Volume 46, Issue D1, 4 January 2018, Pages D708–D717, https://doi.org/10.1093/nar/gkx932 (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.