Hang and not copying - waiTging for another copy ?

[squalou]

Bug Description

I'm using a web application to manage my passwords. (passbolt). When clicking the password, its value is copied to clipboard. (EDIT : same behavior when copying text from any page in the browser)
(usually 'for a certain time', don't ask me how/why, I also saw the same behavior with keypassxc by the way)

When clipboard-manager is running in the panel :

• paste does not work
• clipboard-manager becomes un-responding (I mean: click on the icon does nothing)
• restart clipboard-manager => click on it, the list does not show previously copied password value

THEN : if I "copy" text from another place (like, terminal or text editor) : this new text is copied, clipboard manager seems to unlock, clicking icon will display the newly copied text AND below, the password.

So, it's as-if the first 'copy' did not end and tha app is waiting for something. (may be related to this 'delete later from clipboard' mechanism - but I did not have the issue with keypassxc for instance)

Expected Result

clipboard manager's clipboard would get populated / cleaned when asked to

Steps to Reproduce

browse for a password, click 'copy'.

click clipboard-manager icon : nothing happens. Paste : nothing happens.

See logs below to see what happens when clicking on the icon.

Then copy some other text from a text editor : situation gets better.

Additional Information

Logs

I would LOVE to add some detailed logs, I built the applet from sources so I may rebuild it with verbose flags if needed.
So far I've seen nothing.

best I Managed was building in debug, launch from terminal,
and ... got spammed by these when reproducing the issue ; that happens when clicking on icon after the copy action from password manager app.

2025-12-15T08:09:41.655576Z  WARN iced_futures::subscription::tracker: Error sending event to subscription: TrySendError { kind: Full }
2025-12-15T08:09:41.658684Z  WARN iced_futures::subscription::tracker: Error sending event to subscription: TrySendError { kind: Full }
2025-12-15T08:09:41.658780Z  WARN iced_futures::subscription::tracker: Error sending event to subscription: TrySendError { kind: Full }

[latsss]

Having the same on Fedora 43. In my case it's not related to password manager, and it hangs the target app as well until 2nd or 3rd copy attempt.

logs are the same:
jan 11 15:32:42 fedora cosmic-ext-applet-clipboard-manager[2341]: Error sending event to subscription: TrySendError { kind: Full }