Fix Flakes Errors: openspending/ui/test/functional/test_dimension.py
Fix Flakes Errors: openspending/ui/test/functional/test_dimension.py

CivicVision/datahub,spendb/spendb,CivicVision/datahub,openspending/spendb,pudo/spendb,johnjohndoe/spendb,USStateDept/FPA_Core,CivicVision/datahub,spendb/spendb,openspending/spendb,USStateDept/FPA_Core,pudo/spendb,openspending/spendb,johnjohndoe/spendb,johnjohndoe/spendb,pudo/spendb,nathanhilbert/FPA_Core,USStateDept/FPA_Core,nathanhilbert/FPA_Core,nathanhilbert/FPA_Core,spendb/spendb