The key a registration collapses by: its own key, else the derived related key. Empty for a registration with neither, which never collapses. Uses the shared ResolveContributionWriteKey.
ResolveContributionWriteKey
The key a registration collapses by: its own key, else the derived related key. Empty for a registration with neither, which never collapses. Uses the shared
ResolveContributionWriteKey.