Revert: Undo r46639.

This was meant to be committed to /trunk. 

See #48337.

Built from https://develop.svn.wordpress.org/branches/5.3@46653


git-svn-id: http://core.svn.wordpress.org/branches/5.3@46453 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/rest-api/class-wp-rest-request.php

@@ -310,7 +310,7 @@ class WP_REST_Request implements ArrayAccess {
 		}
 
 		$value = strtolower( $value );
-		if ( false === strpos( $value, '/' ) ) {
+		if ( strpos( $value, '/' ) === false ) {
 			return null;
 		}
 

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-RC3-46639';
+$wp_version = '5.3-RC3-46653';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.