Fix empty projection handling

server/database/model/base.py

@@ -353,9 +353,12 @@ class GetMixin(PropsMixin):
         cls, projection: Sequence[str]
     ) -> Tuple[Collection[str], Collection[str]]:
         """Return include and exclude lists based on passed projection and class definition"""
+        if projection:
             include, exclude = partition(
                 projection, key=lambda x: x[0] != ProjectionHelper.exclusion_prefix,
             )
+        else:
+            include, exclude = [], []
         exclude = {x.lstrip(ProjectionHelper.exclusion_prefix) for x in exclude}
         return include, set(cls.get_exclude_fields()).union(exclude).difference(include)