Hi Alaa Najjar,
Thank you for taking the time to share the detailed explanation and clear steps to reproduce the issue. We truly appreciate your effort in reporting this.
We checked the behavior on our side and were able to replicate the reported issue in our earlier version 32.2.7. However, when validating the same scenario in our latest version 33.1.44, the issue is not reproduced, and the ordered list behaves as expected during copy-and-paste operations.
For your reference, please find a sample demonstrating the correct behavior in the latest version:
Sample: https://stackblitz.com/edit/angular-2crhk455?file=src%2Fapp.component.html
We kindly recommend upgrading to the latest version (33.1.44) to resolve the issue from your end.