EPA: duplicate comments captured in data family instance declaration
The code
data instance Method PGMigration = MigrationQuery Query
-- ^ Run a query against the database
| MigrationCode (Connection -> IO (Either String ()))
-- ^ Run any arbitrary IO code
Results in two instances of the -- ^ Run a query against the database
comment appearing in the Exact Print Annotations when it is parsed.
Note: This affects GHC 9.2.1 (unreleased still) too.