ignore mask when copy text

Hello.
I have a phone text field with mask (mask:"(+ ### ##) ### ## ##").
How can I ignore this mask when I copy this field and set to clipboard clear value.
For example:

  • (375 29) 111 11 11 ----->ctrl+c---->ctrl+v result 375291111111

https://snippet.webix.com/wsdfq6yz

maybe something like this: https://snippet.webix.com/xjiuahql

Thanks !