[Bug] Metadata fields being returned as lists

[frazerpoggio]

Describe the Bug
We're seeing several metadata fields being returned as lists randomly when the API documentation for the /v1/scrape endpoint says they should be strings or null.

Particular fields are:
metadata.title
metadata.description
metadata.language

To Reproduce
Call the /v1/scrape endpoint. Seems random to as when it occurs.

curl --request POST \
  --url https://api.firecrawl.dev/v1/scrape \
  --header 'Authorization: Bearer <token>'\
  --header 'Content-Type: application/json' \
  --data '{
  "url": "https://www.beckershospitalreview.com/finance/montefiores-financial-comeback-from-28-6m-operating-loss-to-147m-gain.html",
  "formats": [
    "markdown"
  ]
}'

Have seen it occur on the above url ^

Expected Behavior
A response matching the API documentation