fix: call init for the tests

* @blueprint.record_once was called on the tests but the entrypoints
  not, therefore the init function has to be called explicitly

tests/conftest.py

@@ -25,6 +25,7 @@
 from invenio_vocabularies.records.api import Vocabulary
 
 from invenio_communities.communities.records.api import Community
+from invenio_communities.ext import init
 from invenio_communities.members.records.api import Member
 from invenio_communities.proxies import current_communities
 
@@ -65,7 +66,13 @@ def app_config(app_config):
 @pytest.fixture(scope="module")
 def create_app(instance_path):
     """Application factory fixture."""
-    return create_api
+
+    def wrap(**config):
+        app = create_api(**config)
+        init(app)
+        return app
+
+    return wrap
 
 
 @pytest.fixture()