Improved error message for duplicate form.
Improved error message for duplicate form.

piqoni/onadata,sounay/flaminggo-test,mainakibui/kobocat,ehealthafrica-ci/onadata,hnjamba/onaclone,ehealthafrica-ci/onadata,hnjamba/onaclone,spatialdev/onadata,jomolinare/kobocat,spatialdev/onadata,GeoODK/formhub,spatialdev/onadata,kobotoolbox/kobocat,qlands/onadata,spatialdev/onadata,piqoni/onadata,eHealthAfrica/onadata,GeoODK/onadata,wesley1001/formhub,mainakibui/kobocat,GeoODK/onadata,makinacorpus/formhub,makinacorpus/formhub,eHealthAfrica/formhub,eHealthAfrica/onadata,awemulya/fieldsight-kobocat,kobotoolbox/kobocat,SEL-Columbia/formhub,awemulya/fieldsight-kobocat,ehealthafrica-ci/formhub,makinacorpus/formhub,SEL-Columbia/formhub,piqoni/onadata,smn/onadata,kobotoolbox/kobocat,smn/onadata,ultimateprogramer/formhub,jomolinare/kobocat,smn/onadata,hnjamba/onaclone,ehealthafrica-ci/onadata,mainakibui/kobocat,eHealthAfrica/formhub,sounay/flaminggo-test,SEL-Columbia/formhub,sounay/flaminggo-test,GeoODK/formhub,wesley1001/formhub,ehealthafrica-ci/formhub,smn/onadata,piqoni/onadata,GeoODK/formhub,ultimateprogramer/formhub,GeoODK/onadata,SEL-Columbia/formhub,hnjamba/onaclone,eHealthAfrica/formhub,qlands/onadata,mainakibui/kobocat,kobotoolbox/kobocat,awemulya/fieldsight-kobocat,jomolinare/kobocat,ultimateprogramer/formhub,wesley1001/formhub,wesley1001/formhub,eHealthAfrica/formhub,makinacorpus/formhub,ehealthafrica-ci/formhub,jomolinare/kobocat,awemulya/fieldsight-kobocat,sounay/flaminggo-test,eHealthAfrica/onadata,ehealthafrica-ci/formhub,ultimateprogramer/formhub,ehealthafrica-ci/onadata,qlands/onadata,qlands/onadata,GeoODK/onadata