Assume an action is valid until proven otherwise

This way, if an error is thrown before the validation happens, the
error handler will still attempt to set the action's status as failed
instead of just skipping over it.

Fixes #1245

Author: coreymckrill

classes/abstracts/ActionScheduler_Abstract_QueueRunner.php

@@ -86,15 +86,16 @@ function ( $type, $message ) {
 		 */
 		try {
 			try {
-				$valid_action = false;
+				$valid_action = true;
+
 				do_action( 'action_scheduler_before_execute', $action_id, $context );
 
 				if ( ActionScheduler_Store::STATUS_PENDING !== $this->store->get_status( $action_id ) ) {
+					$valid_action = false;
 					do_action( 'action_scheduler_execution_ignored', $action_id, $context );
 					return;
 				}
 
-				$valid_action = true;
 				do_action( 'action_scheduler_begin_execute', $action_id, $context );
 
 				$action = $this->store->fetch_action( $action_id );