MAINT: Small style changes.

src/caosadvancedtools/models/data_model.py

@@ -141,8 +141,8 @@ class DataModel(dict):
                     # in via the extern keyword:
                     ref = db.Property(name=ent.name).retrieve()
                 else:
-                    q = db.Query("FIND * with id={}".format(ent.id))
-                    ref = q.execute(unique=True)
+                    query = db.Query(f"FIND * with id={ent.id}")
+                    ref = query.execute(unique=True)
                 diff = (describe_diff(*compare_entities(ent, ref
                                                         ), name=ent.name))