[imp]Client side validation for menu type single news feed

[Erftralle]

Test instructions

• Go to Menu Manager: New Menu Item
• Enter a menu title
• Select Single News Feed for Menu Item Type
• Do not select any feed
• Click on Save or Save & Close

You will recognize:

• The system message container just displays the message Error without any hint to the field concerned
• The field label will not be coloured red
• If you select a feed now the red colouring is not removed

After applaying the patch:

• The system message container now displays the additional message Invalid field: Feed
• The field label will be coloured red
• After selecting a feed the red colouring is removed now

System information

Latest Joomla! staging

[MATsxm]

@test
able to reproduce
then #6889 works as described.
thanks

[dgrammatiko]

@test success

[peterlose]

All good!

[zero-24]

Great work. 😄 --> RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/joomla-cms/6889.}