Kevin M Moran, Jeffrey H Skevington, Scott Kelso, Ximo Mengual, Kurt Jordaens, Andrew D Young, Gunilla Ståhls, Valerii Mutin, Sander Bot, Menno van Zuijen, Katsuyoshi Ichige, Jeroen van Steenis, Martin Hauser, Wouter van Steenis, A multigene phylogeny of the eristaline flower flies (Diptera: Syrphidae), with emphasis on the subtribe Criorhinina, Zoological Journal of the Linnean Society, 2021;, zlab006, https://doi.org/10.1093/zoolinnean/zlab006 (Σύνδεσμος)
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.