* Fix return value error of bug confirm function.

module/bug/control.php

@@ -376,7 +376,7 @@ class bug extends control
             $bug = form::data($this->config->bug->form->confirm)->add('id', $bugID)->setDefault('confirmed', 1)->get();
             $bug = $this->loadModel('file')->processImgURL($bug, $this->config->bug->editor->confirm['id'], $this->post->uid);
 
-            $this->bug->confirm($bug, $kanbanData);
+            $changes = $this->bug->confirm($bug, $kanbanData);
 
             if(dao::isError()) return $this->send(array('result' => 'fail', 'message' => dao::getError()));
 

module/bug/model.php

@@ -593,9 +593,9 @@ class bugModel extends model
      * @param  object $bug
      * @param  array  $kanbanData
      * @access public
-     * @return bool
+     * @return array|bool
      */
-    public function confirm(object $bug, array $kanbanData = array()): bool
+    public function confirm(object $bug, array $kanbanData = array()): array|bool
     {
         $oldBug = $this->getByID($bug->id);
 
@@ -619,9 +619,9 @@ class bugModel extends model
         /* Record history. */
         $changes  = common::createChanges($oldBug, $bug);
         $actionID = $this->loadModel('action')->create('bug', $oldBug->id, 'bugConfirmed', $this->post->comment);
-        $this->action->logHistory($actionID, $changes);
+        if($changes) $this->action->logHistory($actionID, $changes);
 
-        return !dao::isError();
+        return $changes;
     }
 
     /**