fix: allow blank summary field in ActorSerializer

2092.fix

@@ -0,0 +1 @@
+Allow summary field of actors to be blank. This leaves actors valid that have a blank (`""`) summary field and allows follows from those.

api/funkwhale_api/federation/serializers.py

@@ -247,6 +247,7 @@ class ActorSerializer(jsonld.JsonLdSerializer):
         truncate_length=common_models.CONTENT_TEXT_MAX_LENGTH,
         required=False,
         allow_null=True,
+        allow_blank=True
     )
     followers = serializers.URLField(max_length=500, required=False)
     following = serializers.URLField(max_length=500, required=False, allow_null=True)