Update title and junction test

api/s1_title.py

@@ -11,14 +11,8 @@ def get_title(name: str) -> str:
 def set_title(name: str, value: str) -> ChangeSet:
     old = get_title(name)
 
-    with conn[name].cursor() as cur:
-        sql = f"update title set value = '{value}'"
-        cur.execute(sql)
-
-        redo = sql.replace("'", '"')
-        undo = f'update title set value = "{old}"'
-        add_operation(name, redo, undo)
-
-    change = ChangeSet()
-    change.update('title', 'null', 'value')
-    return change
+    sql = f"update title set value = '{value}'"
+    undo = f"update title set value = ''{old}''"
+    write(name, sql)
+    add_operation(name, sql.replace("'", "''"), undo, 'set_title', API_UPDATE, 'title', '')
+    return get_current_change_set(name)