Fix for get realPath on IIS.

Sometimes getRealPath is empty when requested on IIS and needs to be rebuilt manually.

modules/cms/widgets/MediaManager.php

@@ -1098,10 +1098,14 @@ class MediaManager extends WidgetBase
             $path = $quickMode ? '/uploaded-files' : Input::get('path');
             $path = MediaLibrary::validatePath($path);
             $filePath = $path.'/'.$fileName;
-
+            
+            $realPath = empty(trim($uploadedFile->getRealPath())) 
+                             ? $uploadedFile->getPath() . DIRECTORY_SEPARATOR . $uploadedFile->getFileName() 
+                             : $uploadedFile->getRealPath();
+            
             MediaLibrary::instance()->put(
                 $filePath,
-                File::get($uploadedFile->getRealPath())
+                File::get($realPath)
             );
 
             /*