See: Spradling, T. A., Demastes, J. W., Hafner, D. J., Milbach, P. L., Cervantes, F. A., & Hafner, M. S. (2016). "Systematic revision of the pocket gopher genus Orthogeomys". Journal of Mammalogy, 97(2), 405-423. (https://academic.oup.com/jmammal/article/97/2/405/2459565)
Burgin, C. J., Colella, J. P., Kahn, P. L., and Upham, N. S. 2018. How many species of mammals are there? Journal of Mammalogy 99:1—11. [https://doi.org/10.1093/jmammal/gyx147] (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.