Our ZABBIX server (v 1.8.2) crashes (reproducible) during discovery.

We have 14 discovery rules and 30 discovery actions. We have pinned down the crash to a "housekeeper" rule with the following conditions:

• Discovery status = "Down" (AND)
• Uptime/Downtime >= "86400"

Action: Remove host

This action worked fine until the upgrade to 1.8.2 (from 1.8.0). We also have created a few more discovery rules and actions with the upgrade, so I am unsure whether this 1.8.2 related.
When above action is enabled, ZABBIX server crashes a few seconds after startup. When we disable it, the server runs fine.

The component that is crashing is a discoverer process. I have attached a log file with debuglevel=4 from start to crash of the given process.
If you need any further information to analyze the crash, please let me know.