Prunella hastifolia is a controversial taxa. POWO considers Prunella hastifolia and Prunella grandiflora subsp. pyrenaica as synonym of Prunella grandiflora.
In Spain and in Portugual "hastifolia/pyrenaica" is include in Prunella grandiflora variability.
But in France it's still listed as Prunella hastifolia and europlusmed.org list Prunella hastifolia as Prunella grandiflora subsp. pyrenaica.
Considering there's no clear consensus for this taxa, merging P. hastifolia into P. grandiflora subsp. pyrenaica but keep subsp. pyrenaica is the best consensus to prevent loss of data.
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.
