Index: src/wp-admin/includes/class-wp-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-list-table.php	(revision 35817)
+++ src/wp-admin/includes/class-wp-list-table.php	(working copy)
@@ -1037,38 +1037,6 @@
 	}
 
 	/**
-	 * If 'orderby' is set, return it.
-	 *
-	 * @access protected
-	 * @since 4.4.0
-	 *
-	 * @return string The value of 'orderby' or empty string.
-	 */
-	protected function get_orderby() {
-		if ( isset( $_GET['orderby'] ) ) {
-			return $_GET['orderby'];
-		}
-
-		return '';
-	}
-
-	/**
-	 * If 'order' is 'desc', return it. Else return 'asc'.
-	 *
-	 * @access protected
-	 * @since 4.4.0
-	 *
-	 * @return string 'desc' or 'asc'.
-	 */
-	protected function get_order() {
-		if ( isset( $_GET['order'] ) && 'desc' === $_GET['order'] ) {
-			return 'desc';
-		}
-
-		return 'asc';
-	}
-
-	/**
 	 * Print column headers, accounting for hidden and sortable columns.
 	 *
 	 * @since 3.1.0
@@ -1084,9 +1052,18 @@
 		$current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );
 		$current_url = remove_query_arg( 'paged', $current_url );
 
-		$current_orderby = $this->get_orderby();
-		$current_order = $this->get_order();
+		if ( isset( $_GET['orderby'] ) ) {
+			$current_orderby = $_GET['orderby'];
+		} else {
+			$current_orderby = '';
+		}
 
+		if ( isset( $_GET['order'] ) && 'desc' === $_GET['order'] ) {
+			$current_order = 'desc';
+		} else {
+			$current_order = 'asc';
+		}
+
 		if ( ! empty( $columns['cb'] ) ) {
 			static $cb_counter = 1;
 			$columns['cb'] = '<label class="screen-reader-text" for="cb-select-all-' . $cb_counter . '">' . __( 'Select All' ) . '</label>'
Index: src/wp-admin/includes/post.php
===================================================================
--- src/wp-admin/includes/post.php	(revision 35817)
+++ src/wp-admin/includes/post.php	(working copy)
@@ -1008,16 +1008,12 @@
 		$orderby = $q['orderby'];
 	} elseif ( isset( $q['post_status'] ) && in_array( $q['post_status'], array( 'pending', 'draft' ) ) ) {
 		$orderby = 'modified';
-	} elseif ( ! is_post_type_hierarchical( $post_type ) ) {
-		$orderby = 'date';
 	}
 
 	if ( isset( $q['order'] ) ) {
 		$order = $q['order'];
 	} elseif ( isset( $q['post_status'] ) && 'pending' == $q['post_status'] ) {
 		$order = 'ASC';
-	} else {
-		$order = 'desc';
 	}
 
 	$per_page = "edit_{$post_type}_per_page";
@@ -1844,4 +1840,4 @@
 	 */
 	wp_redirect( apply_filters( 'redirect_post_location', $location, $post_id ) );
 	exit;
-}
\ No newline at end of file
+}