Can't edit torrc from within Vidalias' interface

A user reports for: Tor Browser Bundle (2.2.37-1)

Any attempt at editing and saving the torrc file via Vidalias' interface:

_Settings-->Advanced-->Edit current torrc-->OK_

fails with the popup message:

Error at line 1: ""

This happens even without editing the file.

I can reproduce this error on Windows 7 (64bit). You can edit the file manually with your favorite notepad. Tor accepts the changes, so I assume that the bug is within Vidalia.

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