Bug 450679 - Rules: Variable assignment leads to error

Signed-off-by: Oliver Libutzki <oliver@libutzki.de>
Merge branch 'Bug450679' of https://github.com/OLibutzki/smarthome into OLibutzki-Bug450679
replaced openhab by ESH

Signed-off-by: Kai Kreuzer <kai@openhab.org>