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Improve the documentation of marker handling when reverting

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* doc/lispref/backups.texi (Reverting): Mention markers from
non-file sources (bug#30028).

* lisp/files.el (revert-buffer): Mention what happens with markers
(bug#30028).

* src/fileio.c (Finsert_file_contents): Say a bit more about what
markers are restored (bug#30028).
This commit is contained in:
Lars Ingebrigtsen 2020-12-12 12:20:38 +01:00
parent 61b6cc401a
commit b41942fac9
3 changed files with 12 additions and 4 deletions
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3
lisp/files.el
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@ -6119,6 +6119,9 @@ This undoes all changes since the file was visited or saved.
With a prefix argument, offer to revert from latest auto-save file, if
that is more recent than the visited file.
Reverting a buffer will try to preserve markers in the buffer;
see the Info node `(elisp)Reverting' for details.
This command also implements an interface for special buffers
that contain text that doesn't come from a file, but reflects
some other data instead (e.g. Dired buffers, `buffer-list'