[TYPO3-core] RFC bug #17360: beforeWrap property of TMENU is not recognized anymore

[JoH asenau]

> could you provide a ts snippet to test the scenario? What is the reason
> for stop working?

The GLUECK template mentioned in #16756 is using it in it's menu setup.

The reason for the bug is $pref being processed by stdWrap before it is 
used to determine the array key $pref.'Wrap'

$pref can be "before" or "after" and in versions before 4.5, the whole 
stuff was in just one line, so $pref had the same value for both stdWrap 
and $pref.'Wrap'.

"before" resulted in "beforeWrap" and "after" was used to get "afterWrap".

In the current version the value of $pref might be processed by stdWrap 
so it might change to something else as "before" or "after". This is why 
we have to make sure that $pref is not changed at all before it used to 
get the appropriate wrap.

HTH

Joey

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