Bugfix: should not 500 when trying to create a project observation without a project.
Bugfix: should not 500 when trying to create a project observation without a project.

inaturalist/inaturalist,calonso-conabio/inaturalist,pleary/inaturalist,inaturalist/inaturalist,inaturalist/inaturalist,calonso-conabio/inaturalist,pleary/inaturalist,inaturalist/inaturalist,inaturalist/inaturalist,calonso-conabio/inaturalist,calonso-conabio/inaturalist,calonso-conabio/inaturalist,pleary/inaturalist,pleary/inaturalist,pleary/inaturalist