"withPicture" parameter for sequences endpoint not working

example: https://api.panoramax.xyz/api/collections/e13c6c47-16ad-490a-a579-ad910ed8f831/items?limit=1&withPicture=5eec68b4-52ad-4ce5-9f5f-43bb03442079

I would have assumed (after reading the API docs) that this request would return the item with the uuid 5eec68b4…. Instead it returns the first item of the sequence.

PS: the API docs also mention that the limit parameter is unbound by default:

Number of items that should be present in response. Unlimited by default.

But it appears as if it is 100 by default and cannot be set to anything larger than 1000.