Description of problem: Latest stable zsh release is 5.0.0, please consider to upgrade Fedora package from 4.3.17 to 5.0.0: http://zsh.sourceforge.net/News/
There are inofficial packages for 5.0.0 available: http://dmaphy.fedorapeople.org/zsh/ I will make an official update if I get around to it and no one beats me to do it. :)
zsh-5.0.0-1.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/zsh-5.0.0-1.fc18
zsh-5.0.0-1.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/zsh-5.0.0-1.fc17
Package zsh-5.0.0-1.fc18: * should fix your issue, * was pushed to the Fedora 18 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing zsh-5.0.0-1.fc18' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-18818/zsh-5.0.0-1.fc18 then log in and leave karma (feedback).
zsh-5.0.0-1.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report.
zsh-5.0.0-1.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.