Page saved as HTML, no matter what file extension one gives (except .mhtml)
Submitted by Dan Jacobson
Link to original bug (#785298)
Description
C-s to save a file works fine if the user doesn't change the mhtml extension.
If he does, the file will be saved as html, no matter what the extension the user changes gives. .txt, .zzz, whatever.
Also the user has no way to know that the valid types he can pick are mhtml and html.
Version: 3.22.x (obsolete)