following Marcussen, T., Ballard, H. E., Danihelka, J., Flores, A. R., Nicola, M. V., & Watson, J. M. (2022). A revised phylogenetic classification for Viola (Violaceae). Plants, 11(17), 2224.
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.