[TYPO3-core] RFC: #15456 Bug: Changes made by ColorPicker Wizard are not saved

["Christian Müller (Kitsunet)"]

This is an SVN patch request.

Type: Bugfix

Bugtracker references: http://bugs.typo3.org/view.php?id=15456

Branches: "TYPO3_4-4 & trunk" (but I am pretty sure it also affects 4.3)

Problem:
While using the color picker wizard (typo3/wizard_colorpicker.php) 
changes to the form field in TYPO3 backend are not saved. Direct input 
to the input field works. (The bug report mentions TV but I reproduced 
it with standard TCA form fields).

Solution:
Update the hidden field that really keeps the data by preserving the 
security hash field in wizard form.

Notes:
Full credits for bug report and patch go to Tobias Hoevelborn. I just 
submit it to the core list.

I tested his patch and therefore a +1 from me, even if I found an 
alternative solution his is cleaner.

cheers,
Christian
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