Issue Resolved:

• When creating or editing a recurring invoice, RecurringInvoices::store() and RecurringInvoices::update() dispatch CreateDocument / UpdateDocument jobs by calling new CreateDocument($request->merge([...])).
• FormRequest::merge() mutates the request but returns void, so the expression ends up passing null into the job constructors.
• The job boot logic sees no request payload, builds an empty mock request, and the invoice gets created/updated without any of the validated fields (type, contact, items, schedule), leading to errors or corrupt data across the recurring invoices feature and any integrations that rely on it.

#3315