Merge pull request 'Correct small bug in merge city' (#1) from bug_in_merge_city into main

Reviewed-on: https://nextgenerations-cities.encs.concordia.ca/gitea/CERC/hub/pulls/1

hub/city_model_structure/city.py

@@ -459,6 +459,7 @@ class City:
         for surface in city_object.surfaces:
           radiation = surface.global_irradiance
           if 'year' not in radiation and 'month' not in radiation:
+
             continue
           elif "year" in radiation:
             building_radiation += radiation["year"].iloc[0]