Version in question: v1.8.0

To reproduce:

1. Setup algolia search client and scout extended.
2. Prepare table with VARCHAR column.
3. Insert a row with text. In my case, I used this "0281E3986958"
4. Run artisan scout:import or artisan scout:reimport

Observed behavior: An error occurs InvalidArgumentException : json_encode error: Inf and NaN cannot be JSON encoded

Expected behavior: Should import fine.

Findings:
This was caused by "0281E3986958" data that is treated as an exponential number and was converted into INF (["column" => INF]).
Line that is causing this is L116
Tried replacing ->transform($array) with ->toArray() and it imported fine.