Attempting to PUT an asset with the space property defined results in 500

[griffri]

The "space" field should only be supplied with assets that are part of a batch. If you PUT a single asset that contains it, like so:

{
    "mediaType": "video/mp4",
    "origin":"...my_video.mp4",
    "space":"12"
}

Protagonist will throw the following error:

Asserted space does not agree with supplied space.

This is correct, but the response received by the caller is currently a 500 error with no body.
The Hydra validator should block usage of this property if the asset is not part of a batch.
See #977 (comment):

The fix is to make this a 'nicer' error message and 400 response.

[donaldgray]

Note - I don't think The Hydra validator should block usage of this property if the asset is not part of a batch. is correct, it's valid to specify a space as long as it matches the one in the URL.

The fix is to make this a 'nicer' error message and 400 response.