[Bug] Blog label not activating in editor

[liviopersonne]

Describe the bug
When you select a label to add on a blog that you are editing, the orange tick doesn't appear next to that label.

To Reproduce
Steps to reproduce the behavior:

1. Log into an account with blog author perms
2. Start editing a blog
3. Click on "Modifier les labels"
4. Try adding a label
5. The orange tick won't appear
6. Reload the page
7. The orange tick appears
8. Note that if you click twice on the label, the orange tick doesn't appear because it was toggled and untoggled

Expected behavior
An orange tick should light up next to the label we activated.

Screenshots

What the orange tick looks like:

Environment (please complete the following information):

• OS: GNU/Linux
• Browser: Firefox version 138