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From: | Gregory Heytings |
Subject: | Re: Concern about new binding. |
Date: | Thu, 04 Feb 2021 08:49:58 +0000 |
You can easily undo it, however, with a quick C-/.I think that is limited to files under a certain size.
Yes, that limit is 'undo-outer-limit', set to 22 MB by default.Unfortunately, when you execute 'revert-buffer' on such a large buffer, you get a warning _after_ the reversion has happened that you cannot undo it anymore: "Warning (undo): Buffer '...' undo info was ... bytes long. The undo info was discarded because it exceeded `undo-outer-limit'."
It would perhaps make sense to ask for confirmation _before_ executing the command ("The command '...' will discard undo info, really do it? (yes or no)").
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