We believe that your issue has been closed by the upload of
Version  of  from Alexander Wirt <formorer@grml.org> .
The explanation is attached below

0.3.10 of grml-etc-core successfully installed in grml-testing.
Changed-By: Alexander Wirt <formorer@grml.org> 
Changes:
 grml-etc-core (0.3.10) unstable; urgency=low
 . 
   * /etc/zsh/zshrc: use \e instead of the escape-sequence.
     Thanks for the patches, ft! [Closes: issue229, issue230]
Files:
 5c873438dcb5fe83367df7e058fdccd5 507 grml optional grml-etc-core_0.3.10.dsc
 34404e910b662160121c97b25d0b0848 82112 grml optional grml-etc-core_0.3.10.tar.gz
 3d0ae6e9126f1d9ffbf93e5447d64829 84742 grml optional grml-etc-core_0.3.10_all.deb

We believe that your issue has been closed by the upload of
Version 0.3.10 of grml-etc-core from Michael Prokop <mika@grml.org>.
The explanation is attached below

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Format: 1.7
Date: Thu, 07 Jun 2007 14:51:38 +0200
Source: grml-etc-core
Binary: grml-etc-core
Architecture: source all
Version: 0.3.10
Distribution: unstable
Urgency: low
Maintainer: Michael Prokop <mika@grml.org>
Changed-By: Michael Prokop <mika@grml.org>
Description: 
 grml-etc-core - core ecetera files for the grml system
Changes: 
 grml-etc-core (0.3.10) unstable; urgency=low
 .
   * /etc/zsh/zshrc: use \e instead of the escape-sequence.
     Thanks for the patches, ft! [Closes: issue229, issue230]
Files: 
 5c873438dcb5fe83367df7e058fdccd5 507 grml optional grml-etc-core_0.3.10.dsc
 34404e910b662160121c97b25d0b0848 82112 grml optional grml-etc-core_0.3.10.tar.gz
 3d0ae6e9126f1d9ffbf93e5447d64829 84742 grml optional grml-etc-core_0.3.10_all.deb

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Thanks ft, applied with http://hg.grml.org/grml-etc-core/rev/140d63187e98

It really surprised me that this has worked for so long. Seems like
zsh's 'bindkey' is smart enough to translate a literal "^[" into an
escape sequence.

Anyway, I think it's better to use a real escape to avoid confusion.
Patch attached. Assigning bug to mika, hope that's okay.