* Add customer functions to order and refund classes
* Use parent order for refund order number
* Add renderCurrency method to format negative currencies
* Allow negative number of items for refund fields in database
* Add customer functions to order and refund classes
* Extract shared order and refund methods to trait
* Add refund filter to advanced filters in orders report
* Filter refund types in orders data store
* Extract refunds subquery to parent report data store method
* Add refund subquery filtering to order stats data store
* Add tests around refund type filtering
* Change the default option for the refunds filter
* Sync refunds on order sync
* Separate order and refund class extensions
* Add customer functions to order and refund classes
* Change products store to work with refund amounts
* Return early for refunds in coupon data store
* Allow refund processing in tax data store
* Remove unused refund amounts from tables and data stores
* Change order counts to parse out refund entries
* Include refunded orders in default queried statuses
* Only process order number filter on shop order post types
* Extract shared order and refund methods to trait
* Fix renamed schedule_single_order_import method
* Bump PHP and WP version requirements
* Add before and after params to customers controller
* Map before and after order params to order creation date filter
* Hook up customer date filter params in leaderboards controller
* Make customer name extendable
* Update get_customer_name to favor user profile information
* Update customer name on profile update
* Add tests around customer name getting and setting
* Prefix customer name filter with woocommerce_reports_
* make is sortable true.
* Variations endpoint: Fix sorting by SKU when there is an active comparison
* Cleanup
* Extract FROM parameter logic to 'get_from_sql_params'
* Remove unnecessary 'get_order_by_sql_params' from Products and Variations data stores
* Separate notes controller request args and add collection params
* Fix page param var
* Fix collection params sanitization
* Allow array of note types to be queried
* Add order and orderby collection params to notes controller
* Allow sorting by order and orderby params in notes data store
* Make sure notes are ordered by date and unread matches inbox note types
* Allow status or type params to use an array of items
* Add tests for notes ordering
* Remove unnecessary query arg assignment in the notes data store
* Update get_notes_count to use array for status and type
* Change coupons sum to distinct coupon count in REST API
* Hook up unique coupon count to orders summary numbers
* Add coupons count to order segmenting
* Add coupons count to expected stats in order test and revenue tests