User tests: Successful: Unsuccessful:
This PR adds validation to parameter fields of type=option to the parameters of .xml files back-end components
I've added
validate="options"to all fields of type=list with defined options
| Status | New | ⇒ | Pending | 
| Category | ⇒ | Administration com_banners com_categories com_config com_contact com_content com_csp com_fields com_finder com_installer com_joomlaupdate com_languages | 
| Labels | 
                                        Added: 
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| Status | Pending | ⇒ | Fixed in Code Base | 
| Closed_Date | 0000-00-00 00:00:00 | ⇒ | 2020-04-27 14:34:16 | 
| Closed_By | ⇒ | wilsonge | 
Thanks for the correction!
Thanks!