Joomla-cms: Calendar fields inside repeatable fields don't work when added using the top [+] button on an existing field

[aDaneInSpain]

Steps to reproduce the issue

1. Create a component with a repeatable calendar field or install the attached component. com_repeteable-1.0.0.zip
2. Add two or more calendar fields
3. Click save and Close
4. Edit the field again
5. Add another calendar field by clicking the top green plus button
6. Attempt to select a date in the newly added field

Expected result

The date selector shows

Actual result

Nothing happens. The date selector does not load

System information (as much as possible)

Joomla 3.8.3
Example component created with Component Creator

Additional comments

Please note that clicking on the top green [+] button when _first_ adding fields works. It is only when editing the item that the problem occurs.

Please also note that clicking on the green [+] buttons next to existing fields _does_ work.

[prandini]

I'm face almost the same problem,
when I click on top [+] button to add new row, just one row is add, and the others buttons [+] and [-] does not work anymore.

To fix i chose the layout, layout="joomla.form.field.subform.repeatable", it's no the best solution but works fine for me.

@aDaneInSpain did you find some solution for your issue?

[Quy]

Similar to #16480.

The first + button creates a row with X in the id jform_datesselect__datesselectX__init_date.
The other + buttons create rows correctly with id incremented jform_datesselect__datesselect2__init_date.

@Fedik Can you please take a look? Thanks.

[Fedik]

there is a fix #19774

[joomla-cms-bot]

Set to "closed" on behalf of @Quy by The JTracker Application at issues.joomla.org/joomla-cms/19500