All fields are empty after paste doctype json content due to copy_doc not set doctype for child doc

[szufisher]

Description of the issue

Context information (for bug reports)

Output of bench version

(paste here)

Steps to reproduce the issue

1. drap select any existing doctype json file content and copy (ctrl + c)
2. in any erpnext screen, paste (ctrl + v)
3. system auto switch to doctype form view,

Observed result

only empty fields records pasted

Expected result

fields correctly copied

Stacktrace / full error message

(paste here)

Additional information

in the doctype json files, only child table field name is mentioned, in each child record there is no DocType, the copy_doc function relies on the doctype info to correctly copy the child doc.

{

 "doctype": "DocType",
  'name':'dummy'
 "fields": [
  {
   "fieldname": "holiday_date",
   "label": "Date",
  }]
}

the following highlighted line to be added.

OS version / distribution, Frappe install method, etc.

[Nihantra-Patel]

Hi @szufisher,

If you find a bug, even if it's still there in the latest version, and you have a solution, please submit your fix by raising a Pull Request in the newest version of Frappe. Additionally, provide a video showing the issue to help others understand better. if solved then close it.

We no longer provide support for version 13 or older.

Version	EOL	Branch
Version 12	End of 2022	version-12
Version 13	End of 2023	version-13
Version 14	End of 2024 (planned)	version-14
Version 15	End of 2026 (planned)	version-15
Bleeding edge	N/A	develop

For more information, please refer to the guidelines.

Thank You!