fix db error on second login

.pre-commit-config.yaml

@@ -6,3 +6,9 @@
       language: system
       files: ^.*\.py$
       exclude: ^(migrations).*$
+    - id: unittest
+      name: unittest
+      entry: python -m unittest discover ki
+      language: system
+      exclude: .*
+      always_run: true

ki/test/test_profile_endpoint.py

@@ -15,12 +15,15 @@ class TestProfileEndpoint(unittest.TestCase):
         self.client = app.test_client()
 
         with app.app_context():
+            db.drop_all()
+            db.engine.dispose()
             config = migrate.get_config()
             command.upgrade(config, "head")
 
         seed()
 
     def tearDown(self):
+        db.drop_all()
         db.engine.dispose()
 
     def test_create_profile(self):