[Bug 1342724] Re: history-incremental-search-backward weird behavior for multiline commands in 5.0.x

[Margarita Manterola]

I'm attaching a debdiff with the applied patch.

** Patch added: "Fix for correctly handling multiline entries in history."
   https://bugs.launchpad.net/ubuntu/+source/zsh/+bug/1342724/+attachment/4159857/+files/zsh_history_handling.diff

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Title:
  history-incremental-search-backward weird behavior for multiline
  commands in 5.0.x

Status in “zsh” package in Ubuntu:
  Confirmed

Bug description:
  In moving from precise to trusty (work machine, so on LTS cycle), I
  noticed that history-incremental-search-backward is subtly broken in
  5.0.x for history entries loaded from a file (as opposed to ones that
  happened in the current shell session):

  $ echo foo \
  >  bar
  foo bar
  $ ^R bar
  # finds the full command

  but then in a new shell:
  $ ^R bar
  # finds only the word bar, not the full echo command.

  This works fine in zsh 4.3.17 and zsh 4.3.11.

  I already emailed this to zsh-workers at zsh.org, but I figured that a
  tracking bug for other hapless victims of this regression here might
  be warranted as well.

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