fix: migration fix

rhodecode/lib/dbmigrate/versions/116_version_5_7_0.py

@@ -25,8 +25,19 def upgrade(migrate_engine):
     context = MigrationContext.configure(migrate_engine.connect())
     op = Operations(context)
 
-    table = db.PullRequest.__table__
-    with op.batch_alter_table(table.name) as batch_op:
+    pr_table = db.PullRequest.__table__
+    with op.batch_alter_table(pr_table.name) as batch_op:
+        new_column = Column(
+            "settings_json",
+            MutationObj.as_mutable(
+                JsonType(dialect_map=dict(mysql=UnicodeText(16384))),
+            ),
+            default=dict,
+        )
+        batch_op.add_column(new_column)
+
+    pr_version_table = db.PullRequestVersion.__table__
+    with op.batch_alter_table(pr_version_table.name) as batch_op:
         new_column = Column(
             "settings_json",
             MutationObj.as_mutable(