Eluvio Wallet Client, UserItems defaults for sortBy result in a bad request

[elv-gerald]

I noticed in my tests when calling UserItems with the default value for sortBy the server returns a 400 Bad Request error. The docs indicate the default value for sortBy is created
https://core.test.contentfabric.io/elv-client-js/wallet-client/module-ClientMethods.html#.UserItems

walletClient.UserItems() ends up calling https://host-66-220-3-86.contentfabric.io/as/wlt/0xf2737c8669093db6005f6f2c4c3ef1029a63a61a?start=0&limit=50&sort_descending=false&sort_by=created

I poked around the wallet front end and noticed that sort_by uses default. Should the defaults and docs be updated for this?

walletClient.UserItems({sortBy: 'default'}) works