From @brucebennett's interaction with Rafael at POWO:
"[Rafael] suggests the name C. gynocrates has been misapplied and the correct name of the plant you call gynocrates is C. alascana."
Carex nardina (Hornem.) Fr. and Carex gynocrates Wormsk. ex Drejer are homotypic, which entails that Carex gynocrates Wormsk. ex Drejer is a synonym of Carex nardina (Hornem.) Fr. by necessity.
However, our current observations of the entity are not of Carex nardina (Hornem.) Fr., but of Carex alascana Boeckeler., which is why the swap is into C. alascana.
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.
I will leave C. gynocrates as a synonym of C. alascana, despite not being listed as synonyms in POWO, due to the confusion surrounding the name.