I cannot disable spell checker, why

[huzhongshan]

in settings->editor->spell check , the first line [ Enable online spell checker ] is clicked and disabled(grayed) , I cannot uncheck it , why?
How can I disable the spell checker ?
version svn 7385 win32

[zabzonk]

The only way I found to disable it was to disable the plugin via Plugins...|Manage Plugin. What that checkbox is for, god knows.

[danselmi]

It's corrected in rev 7393, because it was allready mentioned in this forum:

Hi
This patch disables the checker when no dictionaries are installed. Mentioned here:

...
2. In the SpellChecker settings (when not installed Dictionary) the checkbox "Enable online spell checker" inaccessible, and so impossible
    to switch off SpellChecker (it's only accessible when Dictionary is installed).
...

and here:

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how can i disable SPELL CHECKING, the checkbox is greyed out (but enabled) and every, really every word is underlined as not recognized!.
...