[5.3] Template Override Plugins Compare (joomla#44588)

---------

Signed-off-by: BrianTeeman <[email protected]>

Author: brianteeman

administrator/components/com_templates/src/Model/TemplateModel.php

@@ -489,6 +489,7 @@ public function getCoreFile($file, $client_id)
         $componentPath = Path::clean($client->path . '/components/');
         $modulePath    = Path::clean($client->path . '/modules/');
         $layoutPath    = Path::clean(JPATH_ROOT . '/layouts/');
+        $pluginPath    = Path::clean(JPATH_ROOT . '/plugins/');
 
         // For modules
         if (stristr($type, 'mod_') !== false) {
@@ -500,6 +501,18 @@ public function getCoreFile($file, $client_id)
             return $coreFile;
         }
 
+        // For plugins
+        if (stristr($type, 'plg_') !== false) {
+            $pluginFolder = explode('_', $explodeArray['2']);
+            $folder       = $pluginFolder['1'];
+            $subFolder    = $pluginFolder['2'];
+            $htmlPath     = Path::clean($pluginPath . $folder . '/' . $subFolder . '/tmpl/');
+            $fileName     = $this->getSafeName($fileName);
+            $coreFile     = Path::find($htmlPath, $fileName);
+
+            return $coreFile;
+        }
+
         if (stristr($type, 'com_') !== false) {
             // For components
             $folder    = $explodeArray['2'];