Fix TinyMCE wrong JS field name

[mvanvu]

Pull Request for Issue #27809.

Testing Instructions

Please see at #27809 (comment)

Expected result

This PR should be fixed for this issue #27809

[Fedik]

Be careful with changing name stuff for tinymce plugin, it changes the behavior, and make b.c. break.
It also breaks the feature #11157 #10996 (especially if editor in a subform).

[mvanvu]

@Fedik I have tested with subform by the article subform field and it still works the same before. Just show here some conflicts you saw.

[Fedik]

if you run test from #11157 it will not work anymore, it changes names

[mvanvu]

@Fedik Yes, the name has been changed or the issue #27809 will not resolve. I think the custom plugin that overrides the JS options should be updated the name. In other way, if the #11157 is already in the J! CORE, OK just close this and remember #27809 is an immortal issue :( .

[zero-24]

As the mentiond PR has been merged into 3.7 i will close here as requested.