EditTag: allow updating the thumbnail visually

models/Tag.php

@@ -11,6 +11,7 @@ class Tag
 	public $id_tag;
 	public $id_parent;
 	public $id_asset_thumb;
+	public $id_user_owner;
 	public $tag;
 	public $slug;
 	public $description;
@@ -258,7 +259,8 @@ class Tag
 			UPDATE tags
 			SET
 				id_parent = {int:id_parent},
-				id_asset_thumb = {int:id_asset_thumb},
+				id_asset_thumb = {int:id_asset_thumb},' . (isset($this->id_user_owner) ? '
+				id_user_owner = {int:id_user_owner},' : '') . '
 				tag = {string:tag},
 				slug = {string:slug},
 				description = {string:description},