Adding Gitolite external service fails with Post http://127.0.0.1:3182/sync-external-service: EOF on sgdev

Created by: felixfbecker

Config:

{
  // Use Ctrl+Space for completion, and hover over JSON properties for documentation.
  // Configuration options are documented here:
  // https://docs.sourcegraph.com/admin/external_service/gitolite#configuration

  "prefix": "gitolite.sgdev.org/",
  "host": "[email protected]"
}

The external service did appear on the page afterwards.