1. Make your description column as narrow as a single letter
2. Enable or disable the Categories sidebar


Desired result:
The description column should remain small.

Actual result:
The description column is expanded.


I keep the description sidebar that small because I only use it to mark torrents I've already watched/used with an "x". I tested the same steps  with the "name" and "size"  column, and they weren't affected by this.