User tests: Successful: Unsuccessful:
Pull Request for Issue #22183
I guess at some merge conflict the subform CE was acidently removed from settings.json
The patch fix it.
Apply patch, run npm install
Add subform field somwhere, example to Custom Module
/modules/mod_custom/mod_custom.xml
<field type="subform" name="subform" label="Subform1" multiple="true">
  <form>
    <field type="text" name="text1" label="Text1"/>
      <field type="subform" name="subform_nested" label="Subform Nested" multiple="true"
			   default='[{"text_nested":"ueue"}]'>
        <form>
            <field type="text" name="text_nested" label="Text nested"/>
        </form>
    </field>
  </form>
</field>Go to any Custom Module and try edit this field.
Field working
Field not working
nope
| Status | New | ⇒ | Pending | 
| Category | ⇒ | Repository | 
 
                | Status | Pending | ⇒ | Fixed in Code Base | 
| Closed_Date | 0000-00-00 00:00:00 | ⇒ | 2018-09-15 06:05:53 | 
| Closed_By | ⇒ | laoneo | |
| Labels | Added: 
? | ||
 
                Well done. Thanks
I have tested this item✅  successfully on 6b2ac0f
Tested this successfully, subforms can now be used again.
This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/22185.