Ticket #47177: 47177.diff

src/wp-includes/general-template.php

@@ -217 +217 @@
          * in 5.2.0. Then we deal with the $args array and cast its defaults.
          */
         $echo = true;
-        if ( false === $args ) {
+        if ( false === boolval( $args ) ) {
                 $echo = false;
         }