Check only polygons with positive integers are supported

We should never have any negative position in our database

A 400 error should be thrown.

There is maybe already a check on that , please ensure it's tested

See https://gitlab.com/arkindex/requests/-/issues/364

added 1 deleted label

assigned to @erwanrouchet

See #168 (closed): nothing is prevented.

mentioned in merge request !1363 (merged)

mentioned in commit 615fe14c

closed