Merge pull request #558 from stloyd/patch-1

[PharDownloader] Force overwrite if previous extract failed and was not ...

src/Composer/Downloader/PharDownloader.php

@@ -28,7 +28,7 @@ class PharDownloader extends ArchiveDownloader
     {
         // Can throw an UnexpectedValueException
         $archive = new \Phar($file);
-        $archive->extractTo($path);
+        $archive->extractTo($path, null, true);
         /* TODO: handle openssl signed phars
          * https://github.com/composer/composer/pull/33#issuecomment-2250768
          * https://github.com/koto/phar-util