[BUG] Last response disappears for a second and then shows again

[DLM-unipd]

🐞Describe the bug

After the response is finished, all the generated text disappears for a moment and then it appears again.

🔄 To Reproduce

• Use latest version 3.9.2
• Ask for anything
• Wait for the answer to be completed
• Notice the latest answer to disappear for a second and then appear again

[mludvig]

@DLM-unipd can you test if the fix in #946 works for you?

[DLM-unipd]

Thanks @mludvig , it seems to work!