fix double revise letter

migrations/000008_letters_incoming_suite.up.sql

@@ -44,7 +44,7 @@ CREATE TABLE IF NOT EXISTS letter_incoming_recipients (
     read_at TIMESTAMP WITHOUT TIME ZONE,
     completed_at TIMESTAMP WITHOUT TIME ZONE,
     created_at TIMESTAMP WITHOUT TIME ZONE DEFAULT CURRENT_TIMESTAMP
-);
+);I
 
 CREATE INDEX IF NOT EXISTS idx_letter_incoming_recipients_letter ON letter_incoming_recipients(letter_id);