Issue Summary

When copying and pasting text that includes a username mention in Trello comments, the username does not automatically convert into a mention link. For instance, if you copy the text:

"Hey @Alisson Sartor, can you do this job this afternoon?"

It pastes as:

"Hey @alissonsartor can you do this job this afternoon"

The username remains as plain text rather than becoming an active mention link. This was tested and confirmed.

Steps to Reproduce

In the comment section, type a message that includes a mention of a Trello user. For example: "Hey @Alisson Sartor, can you do this job this afternoon?"

Select the entire comment text, including the username mention, and copy it (using Ctrl+C or Command+C).

Expected Results

The system should allow users to mention someone in a message even after pasting text, ensuring that the mentioned person receives a notification and can view the mention.

Actual Results

The user it's not mentioned after pasting the text. The pasted text shows the username as plain text (e.g., "@alissonsartor") instead of converting it into an active mention link.

Workaround

Currently there's not a workaround availabe, only mention manually again.