[TYPO3-core] RFC: bug 4367: Reset recs with clear_all should reset as array, not as string

[Christian Kuhn]

This is an SVN patch request.

Type: bug

Bugtracker references:
http://bugs.typo3.org/view.php?id=4367

Branches: trunk, 4.2-branch

Problem:
The FE User Auth class has the possibility to automatically store form
values in the session if they are submitted in the recs array. There is
a switch in the record_registration() function to reset this array if
"recs[clear_all]" is submitted. If you then fill the recs again a fatal
error is thrown "cannot use string offset in an array".

Solution:
Reinitialize recs as empty array and not as empty string if
recs['clear_all'] is set.

Notes:
Code documentation always talks of recs as an array:
Line 129: - 'recs': Array ... Structure:
[recs][tablename][record_uid]=number


Regards
Christian
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