Merge branch 'release/2.16.1'

inc/sidebars-emulator.php

@@ -50,7 +50,9 @@ function __call( $name, $args ) {
 						if ( $instance_class == $widget_class && ! empty( $sidebar_id ) ) {
 							//The option value uses only the widget id number as keys
 							preg_match( '/-([0-9]+$)/', $sidebar_id, $num_match );
-							$args[0][ $num_match[1] ] = $widget_instance;
+							if ( ! empty( $num_match ) ) {
+								$args[0][ $num_match[1] ] = $widget_instance;
+							}
 						}
 					}
 				}

readme.txt

@@ -1,7 +1,7 @@
 === Page Builder by SiteOrigin ===
 Tags: page builder, responsive, parallax, widgets, blocks, gallery, layout, grid, cms, builder, widget
 Requires at least: 4.7
-Tested up to: 5.8
+Tested up to: 5.9
 Requires PHP: 5.6.20
 Stable tag: trunk
 Build time: unbuilt
@@ -107,6 +107,10 @@ SiteOrigin Premium includes access to our professional email support service, pe
 
 == Changelog ==
 
+= 2.16.1 - 26 January 2022 =
+* Sidebar Emulator: Accounted for a potential notice when setting widget ID.
+* Updated the `Tested up to tag` to `5.9`.
+
 = 2.16.0 - 04 January 2022 =
 * Added a new global `Mobile Widget Bottom Margin` setting.
 * Added a new global `Mobile Cell Bottom Margin` setting.