FilePersistence saves query.json as 0query.json

[trevorgerhardt]

Does the job.taskId have a / in it somehow? https://github.com/conveyal/r5/blob/dev/src/main/java/com/conveyal/r5/multipoint/MultipointMetadata.java#L53

[abyrd]

I'm not sure what you mean about the slash. Is that related to the zero?

The leading zero is by design in a way. saveStaticSiteData will save any file buffer to S3 (or alternative storage) based on the request. query.json is the only file we don't want to be prefixed with the origin number. I wanted to think about how to make a clean method signature to handle this special case for query but I'd better just do something simple and refactor later.