Comment 5 for bug 174972

This still seems to be a valid bug, or at least UI issue.

Steps to reproduce: (Tested in Linux client, version 2.5.5)
  1. [Accidentally] hit Alt-O (which summons the options menu)
  2. Type any character, or backspace. This will assign it to the shortcut for enabling/disabling logging.
  3. Keep typing, as if trying to type a message. This whole process seems to happen while the user is unaware, and trying to type a message.
  4. This character, inadvertantly chosen as the shortcut key will no longer appear in the written message. If typed, the notice
"Logging stopped [started]. Future messages in this conversation will [not] be logged." will appear in the message box.

Work around:
This is easily (but not obviously) undone by hovering over the Options menu, and hitting that same keyboard shortcut character, thereby removing it as a shortcut.)