fixed: clear cache if a new local trailer is found

(cherry picked from commit dc7c257a816493cbc23f46dc49a99938352d59f0)

git-svn-id: https://xbmc.svn.sourceforge.net/svnroot/xbmc/branches/Dharma@32914 568bbfeb-2a22-0410-94d2-cc84cf5bfa90

xbmc/GUIWindowVideoInfo.cpp

@@ -319,6 +319,7 @@ void CGUIWindowVideoInfo::SetMovie(const CFileItem *item)
                                m_movieItem->GetVideoInfoTag()->m_iDbId,
                                VIDEODB_ID_TRAILER, VIDEODB_CONTENT_MOVIES);
             database.Close();
+            CUtil::DeleteVideoDatabaseDirectoryCache();
           }
         }
       }