Audacious incorrectly set as default handler for inode/directory after installation

[BSnake]

Distribution

Mint 22.2

Package version

6.4.8

Graphics hardware in use

AMD Phoenix3

Frequency

Always

Bug description

After installing Audacious on Linux Mint 22 Cinnamon, the system unexpectedly set Audacious as the default application for the MIME type inode/directory.
When clicking on the "Downloads" folder from Firefox’s download panel, Audacious is launched instead of Nemo.
This behavior has so far only been observed when accessing the folder via Firefox, not when opening other folders directly in the file manager.

Steps to reproduce

Install Audacious via Application Manager. Official package repository.
Download any PDF File using Firefox. After the download completes, click on the "Downloads" folder (directly via Firefox's download panel). Observe that Audacious is launched instead of Nemo.

Expected behavior

Nemo (nemo.desktop) should remain the default handler for inode/directory.
Audacious should only register itself for audio file types (e.g., .mp3, .ogg, .flac).

Additional information

No response