[5.1] Fix calendar value

[Fedik]

Pull Request for #42709 (comment) .

Summary of Changes

The calendar field was doing extra changes for the value, which is bypassing data[value]

Testing Instructions

Please follow #42709 (comment)

Or edit any existing article date. In this case all should work as before.

Actual result BEFORE applying this Pull Request

Wrong date

Expected result AFTER applying this Pull Request

Correct date

Link to documentations

Please select:

• Documentation link for docs.joomla.org:
• No documentation changes for docs.joomla.org needed
• Pull Request link for manual.joomla.org:
• No documentation changes for manual.joomla.org needed

[svenbluege]

Tested with Joomla 5.1. RC2: this change works and brings back the functionality in non-english backoffice-languages.

[richard67]

@svenbluege Could you go to the issue tracker and mark your test result so it's properly counted? Each pull request needs 2 human tests, and yours would be one. For this, go to https://issues.joomla.org/tracker/joomla-cms/43234 , use the blue "Test this" button at the top left corner, select your test result (success) and finally submit. Thanks in advance.

[svenbluege]

I have tested this item ✅ successfully on 8b94a61

Tested successful with a German backoffice + a component which renders the label and then the input of the calendar field.

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[viocassel]

I have tested this item ✅ successfully on 8b94a61

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[richard67]

RTC

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