Download remains active after reaching 100% and completion event is never triggered

Description

I encountered an issue where a download reaches 100%, but Persepolis never considers it completed.

The file appears to be fully downloaded, however:

• The download remains in the active/downloading state.
• The completion notification is never shown.
• Any post-download actions are not triggered.
• The download cannot be finalized normally.

Expected Behavior

Once the download reaches 100%, Persepolis should:

• Mark the download as completed.
• Show the completion notification.
• Execute configured post-download actions.
• Remove the task from the active download state.

Actual Behavior

The progress reaches 100%, but the task remains active indefinitely and never enters the completed state.

Steps to Reproduce

Unfortunately, I haven't found a deterministic way to reproduce the issue yet.

It has happened multiple times with different files from different websites, so it does not appear to be limited to a single server.

Environment

• OS: Parch Linux (Arch-based)
• Desktop Environment: KDE Plasma 6 (Wayland)
• Persepolis Version: Persepolis Download Manager 5.2.0
• aria2 Version: aria2 version 1.37.0

Additional Information

I can provide logs or additional debugging information if needed.