After you change the name of a paremeter inside a pre-existing cluster, the new name will not reflect outside. This feature refreshes names of clusters inside a document.
Pancake doesn't update referenced clusters automaically. So if you change the name in a
ghcluster file outside current GH session, you need to update it by hand before using the feature.
Name, nickname (shorter name), description are refreshed.
As of now, Pancake doesn't refresh the type hint of parameter. The defect will be solved in following updates.