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Subject: Re: K v with arguments offering to save instead of view
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Pankaj Jangid <p4j@j4d.net> writes:

>>> I am observing this since many months now. Earlier when I used to press
>>> "K v" with arguments it used to open attachment using doc-view. But now
>>> it just offers me to save, as if "K o" is pressed.
>>>
>>> What could be wrong with my configuration?
>>
>> What's your value for `mailcap-mime-data'? I've had similar problems in
>> the past, and as I recall the culprit was setting that option to a very
>> severe value.
>
> Its value is nil. But I don't recall setting this value up earlier as
> well. The only difference is that earlier I was using Emacs26.3 and now
> on Emacs master. I build it daily.

I'm afraid I'm out of theories, then -- the mailcap/mime stuff is code I
stay away from. But I've definitely experienced this before --
you have my sympathy if nothing else...