[TYPO3-core] RFC #12398: Unreplaced markers stay in the BE

[Dan Osipov]

This is an SVN patch request.

Type: Bugfix

Bugtracker references:
http://bugs.typo3.org/view.php?id=12398

Branch: Trunk

Problem:
Some markers, which are not replaced, stay in the output. This is not a 
problem in the Core, but is an issue for extensions. If a marker has no 
content, it needs to be set to an empty string to be taken out.

Solution: A much better way would be to take out all unfilled markers 
before sending output.

-- 
Dan Osipov
Calkins Media
http://danosipov.com/blog/
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