[components with associations] backend edit layouts: Correct form action when using component template (tpml=component)

[andrepereiradasilva]

Summary of Changes

In backend edit item (article, contact, newsfeed, menu item, etc) layout we can call the page with &tpml=component, but when we submit the form (ex: through javascript in a parent iframe) we go back to the non component (default) template with side bar.

This PR correct that.

Testing Instructions

Code review.

More info

This problem was discovered in GsoC 2016 multilingual project.

@infograf768 @alikon @jreys please test.

[alikon]

I have tested this item ✅ successfully on 872c309

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[jreys]

I have tested this item ✅ successfully on 872c309

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[cyrez]

Well found! 👍
Maybe to be done in com_modules module edit, where i did the same $tmpl Variable set?

[cyrez]

I have tested this item ✅ successfully on 872c309

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[infograf768]

I have tested this item ✅ successfully on 872c309

Totally B/C and solves the GSOC issue.

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[infograf768]

RTC. Thanks!

@wilsonge

Please merge in 3.6.1

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[infograf768]

Back to pending. Needs a small correction.

missing

$input = JFactory::getApplication()->input; for menus

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[infograf768]

@andrepereiradasilva
Please correct

[andrepereiradasilva]

corrected menu item issue and added to com_modules. Please retest

[infograf768]

I have tested this item ✅ successfully on 111fbea

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[alikon]

I have tested this item ✅ successfully on 111fbea

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[infograf768]

RTC now for good. :)

@wilsonge

Please merge.

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