Is your feature request related to a problem? Please describe.

Steps to reproduce the issue

Hi.

In a xml form, i need to make a show on in a field wich is in a fields group, but the showon depend of a external field (wich is in the parent, not in a <fields... tag.

For exemple :

<field name="something" type="radio" .... </field>
<fields name="params"... >
<field ... showon="something:1" ...>
</field>
</fields>

If the html there are
<div class="control-group" data-showon="[{"field":"jform[params][something]","values":"1"],"sign":"=","op":""}]" data-showon-initialised="">
instead of
<div class="control-group" data-showon="[{"field":"jform[something]","values":"1"],"sign":"=","op":""}]" data-showon-initialised="">

I suggest to prefix the field name with the fields group for exemple :
showon="params.fieldingroup..." if the field named fieldingroup is in a fields group named params
and let
showon="something:...." if the field named something is not in a fields tag.

Regards

Expected result

Actual result

System information (as much as possible)

Additional comments

Describe the solution you'd like

Additional context