Fixed bug #4581: Duplicate entry on cache_pagesection on reloading twice. See...

Fixed bug #4581: Duplicate entry on cache_pagesection on reloading twice. See bugtracker entry for details about this change.

git-svn-id: https://svn.typo3.org/TYPO3v4/Core/trunk@2001 709f56b5-9817-0410-a4d7-c38de5d9e867