It seems that wasn't the expected behavior.
Let me post a screenshot cause pasted text has \u[d+] symbols.

~ uname -a
Linux dell 5.9.12-arch1-1 #1 SMP PREEMPT Wed, 02 Dec 2020 16:14:56 +0000 x86_64 GNU/Linux
Let me know if that's reproducible on other machines and if you need additional information.
It seems that wasn't the expected behavior.

Let me post a screenshot cause pasted text has
\u[d+]symbols.Let me know if that's reproducible on other machines and if you need additional information.