FIX: added unit for workaround

src/caosdb/apiutils.py

@@ -748,6 +748,7 @@ def merge_entities(entity_a: Entity, entity_b: Entity):
                                   name=entity_b.get_property(key).name,
                                   datatype=entity_b.get_property(key).datatype,
                                   value=entity_b.get_property(key).value,
+                                  unit=entity_b.get_property(key).unit,
                                   importance=entity_b.get_importance(key))
             # entity_a.add_property(
             #     entity_b.get_property(key),