EditTag: introduce featured thumbnail manager

controllers/EditTag.php

@@ -105,6 +105,17 @@ class EditTag extends HTMLController
 		$formview = new FormView($form, $form_title ?? '');
 		$this->page->adopt($formview);
 
+		if (!empty($id_tag))
+		{
+			list($assets, $num_assets) = AssetIterator::getByOptions([
+				'direction' => 'desc',
+				'limit' => 500,
+				'id_tag' => $id_tag,
+			], true);
+
+			$this->page->adopt(new FeaturedThumbnailManager($assets, $id_tag ? $tag->id_asset_thumb : 0));
+		}
+
 		if (!empty($_POST))
 		{
 			$form->verify($_POST);