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Prevent infinite recursion when displaying a warning. #1089

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Prevent infinite recursion when displaying a warning. #1089

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Commits on Jan 7, 2021

  1. Prevent infinite recursion when displaying a warning. 

    If the *Warnings* buffer has auto-fill enabled and we're about to print the
warning, `display-warning' would loop back here through `newline' and
`self-insert-command', causing infinite recursion.

I haven't been able to reproduce this in a noninteractive unit test,
unfortunately, but the issue happens in interactive mode whenever
`yas--original-auto-fill-function' is nil and `auto-fill-mode' is enabled in
the *Warnings* buffer.

* yasnippet.el (yas--auto-fill): Disable `auto-fill-mode' in the *Warnings*
buffer as well.
    @phst
    phst committed Jan 7, 2021
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