ServerUploader issue

[crspybits]

Currently at line 399 in Uploader.swift, I'm putting this as a TODO.

Here's my note in the code
9/20/20: This lookup just failed. And the server is now stuck in terms of deferred operations. Need some means of removing these if they fail more than a set number of times. This looks like an example where I could record this on the deferred upload record as an error-- so the client can know of the failure.
If we get this again, one fix would be to remove the DeferredUpload that caused this to fail.