Customer report data store: fix handling of ‘name’ parameter in WHERE clause.

plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-customers-data-store.php

@@ -168,7 +168,6 @@ class WC_Admin_Reports_Customers_Data_Store extends WC_Admin_Reports_Data_Store
 		$where_clauses  = array();
 
 		$exact_match_params = array(
-			'name',
 			'username',
 			'email',
 			'country',
@@ -183,6 +182,10 @@ class WC_Admin_Reports_Customers_Data_Store extends WC_Admin_Reports_Data_Store
 			}
 		}
 
+		if ( ! empty( $query_args['name'] ) ) {
+			$where_clauses[] = $wpdb->prepare( "CONCAT_WS( ' ', first_name, last_name ) = %s", $query_args['name'] );
+		}
+
 		$numeric_params = array(
 			'orders_count'    => '%d',
 			'total_spend'     => '%f',