fix for validation of existing maps for map by upload
fix for validation of existing maps for map by upload

kartta-labs/mapwarper,kartta-labs/mapwarper,dfurber/mapwarper,dfurber/historyforge,dfurber/mapwarper,l34marr/mapwarper,DOE-NEPA/mapwarper,DOE-NEPA/mapwarper,DistributedOpenUnifiedGovernmentNetwork/mapwarper,dfurber/historyforge,dfurber/historyforge,kartta-labs/mapwarper,DOE-NEPA/mapwarper,dfurber/historyforge,DistributedOpenUnifiedGovernmentNetwork/mapwarper,DistributedOpenUnifiedGovernmentNetwork/mapwarper,timwaters/mapwarper,DOE-NEPA/mapwarper,DistributedOpenUnifiedGovernmentNetwork/mapwarper,dfurber/mapwarper,kartta-labs/mapwarper,l34marr/mapwarper,timwaters/mapwarper,l34marr/mapwarper,timwaters/mapwarper,DistributedOpenUnifiedGovernmentNetwork/mapwarper,DOE-NEPA/mapwarper,timwaters/mapwarper,l34marr/mapwarper,kartta-labs/mapwarper,dfurber/mapwarper