[Bug]: Multiple dates can be inserted with @, but only the first one can be edited

[MicaelJarniac]

Describe the bug

If you add multiple dates using @, they all show up, but once clicking on one to edit, it'll always apply the edited value to the first date only.

Expected Behavior

Clicking on any of the dates added should edit only the one clicked, and leave the others untouched.

Steps to reproduce

1. Add multiple dates to the body of a card using @
2. Click on any of them to edit
3. Edit the date using the date picker
4. Notice that it changes the value of the first date only

Relevant errors (if available)

No response

Operating system

Linux