...
Make sure to re-add two OpenLMIS customizations, previously existing in core.py file.
https://github.com/OpenLMIS/openlmis-ref-distro/blob/2d6b855fd14fa8a30d1cf30ef4a6724d031e52f2/reporting/config/services/superset/app-customizations/1.5.2/views/core.py#L28
https://github.com/OpenLMIS/openlmis-ref-distro/blob/2d6b855fd14fa8a30d1cf30ef4a6724d031e52f2/reporting/config/services/superset/app-customizations/1.5.2/views/core.py#L3020
Keeping in mind possible issues with compatibility, the upgrade should take one week as an upper limit.