Unhandled Exception Occurs When Attempting to Enter Dependency That Does Not Exist

Internal server error
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A system error has occurred - our apologies!

Please create a problem report on our support system at http://support.atlassian.com with the following information:

    a description of your problem and what you were doing at the time it occurred
    cut & paste the error and system information found below
    attach the atlassian-bamboo.log log file found in your application home. 

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Version: 4.3.3
Build: 3403
Build Date: 13 Dec 2012
Request Information:

    Request URL: http://localhost:8085/bamboo/chain/admin/config/updateChainDependencies.action
    Scheme: http
    Server: localhost
    Port: 8085
    URI: /bamboo/chain/admin/config/updateChainDependencies.action
    Context Path: /bamboo
    Servlet Path: /chain/admin/config/updateChainDependencies.action
    Path Info:
    Query String:

Stack Trace:

java.lang.IllegalArgumentException: Could not parse key 'Cfwefqwe'
	at com.atlassian.bamboo.plan.PlanKeys.getPlanKey(PlanKeys.java:282)
	at com.atlassian.bamboo.plan.PlanKeys$1.apply(PlanKeys.java:32)
	at com.atlassian.bamboo.plan.PlanKeys$1.apply(PlanKeys.java:27)
	at com.google.common.collect.Iterators$8.next(Iterators.java:782)
	at java.util.AbstractCollection.addAll(AbstractCollection.java:305)
	at java.util.HashSet.<init>(HashSet.java:100)
	at com.google.common.collect.Sets.newHashSet(Sets.java:210)
	at com.atlassian.bamboo.ww2.actions.plans.admin.ConfigurePlanDependencies.doCreate(ConfigurePlanDependencies.java:106)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)