[TYPO3-core] RFC: fixing oddities in recursive stdWraps (bugs #4312 and #4871)

[Martin Kutschker]

Hi!

This is a patch request.

Branch: trunk and TYPO3_40

Problem: to invoke a recursive stdWrap in a stdWrap you have to set it a 
"boolean" value to make it work.

eg.
obj.stdWrap.stdWrap = 1
obj.stdWrap.stdWrap.wrap = [ | ]

This is not stated in TSref and is due a wrong check.

Solution: check for "stdWrap." and not "stdWrap"

Masi
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