Error exporting datasets with "Unspecified" organsm_type in Anvil Explorer

[NoopDog]

Overview

Anvil Data Explorer is unable to export to terra any datasets that do not specify the "Organism Type".

https://explore.anvilproject.org/datasets?filter=%5B%7B%22categoryKey%22%3A%22donors.organism_type%22%2C%22value%22%3A%5Bnull%5D%7D%2C%7B%22categoryKey%22%3A%22datasets.consent_group%22%2C%22value%22%3A%5B%22NRES%22%5D%7D%5D

It looks like the explorer send a request to export wtih the values like

{
  "datasets.dataset_id": {
    "is": [
      "c84917f5-df6d-6be2-94fe-9e178839220e"
    ]
  },
  "donors.organism_type": {
    "is": []
  },
  "files.file_format": {
    "is": [
      ".svs",
      ".txt.gz",
      ".txt",
      "Other",
      ".tar.gz",
      ".csv",
      ".tar",
      ".tsv"
    ]
  }
}

and

donors.organism_type": {
    "is": []

is causing Azul to respond with a 400 Bad Request.

Explorere then infinately retries wtih no delay however.

1. Bad requests should not be retired
2. If we do retry we should follow the retry after delay.
3. We should limit the number of times we retry.

Lets take a look at the initial bug (sending []) and see when this broke and then once that is fixed lets address the otehr errors in follow on tickets.