Package: emacs Version: 1:26.3+1-2 Default installation of emacs package does not include the info manual, as they are in emacs-common-non-dfsg.
A user selecting help menu entries "read the emacs manual", "how to report a bug" and such are given the info index window, and may miss easily the "info file emacs does not exist" message in minibuffer, especially as it disappears on first event. Even if a user does see the message: * it is not that easy to parse for a common user, adding quotes around missing filename-without-its-extension would help * finding out what the missing package is not that trivial It is not useful to show the info index at all in such cases, and replacing it with a debian-specific error buffer telling which package to install. Maybe even using this space to explain the reason for the split would be good.