Exported CVS repo can't be used after import

...
AnyVcsRepository repository = new AnyVcsRepository(new AtlassianModule("com.atlassian.bamboo.plugin.system.repository:cvs"))
                .name(repositoryName)
                .repositoryViewer(new GenericRepositoryViewer()
                        .viewerUrl("http://myrepo.com")
                        .repositoryPath("csv"))
                .serverConfiguration(new MapBuilder()
                        .put("repository.cvs", new MapBuilder()
                                .put("cvsRoot", "/usr/local/CVS")
                                .put("password", "")
                                .put("quietPeriod", 2)
                                .put("module", "test")
                                .put("authType", "password")
                                .put("selectedVersionType", "head")
                                .build())
                        .build())
                .changeDetectionConfiguration(new VcsChangeDetection());
...

io.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.NullPointerException
	at io.atlassian.util.concurrent.LazyReference.getInterruptibly(LazyReference.java:156)
	at io.atlassian.util.concurrent.LazyReference.get(LazyReference.java:116)
	at com.atlassian.bamboo.plan.cache.AbstractImmutableChain.getPlanRepositoryDefinitions(AbstractImmutableChain.java:231)
	at com.atlassian.bamboo.plan.PlanHelper.getPlanRepositoryDefinitions(PlanHelper.java:49)
	at com.atlassian.bamboo.plan.PlanHelper.getDefaultPlanRepositoryDefinition(PlanHelper.java:69)
	at com.atlassian.bamboo.plan.branch.ChainBranchUtils.getANameFromBranch(ChainBranchUtils.java:64)
	at com.atlassian.bamboo.plan.branch.ChainBranchUtils.getSubstitutedVcsBranchDisplayNameWithoutContextChange(ChainBranchUtils.java:51)
	at com.atlassian.bamboo.plan.branch.ChainBranchUtils.getChainBranchNameWithoutContextChange(ChainBranchUtils.java:110)
	at com.atlassian.bamboo.plan.branch.ChainBranchUtils.lambda$getChainBranchNameInTemporaryContext$3(ChainBranchUtils.java:101)
	at com.atlassian.bamboo.variable.CustomVariableContextImpl.withVariableSubstitutor(CustomVariableContextImpl.java:196)
	at com.atlassian.bamboo.plan.branch.ChainBranchUtils.getChainBranchNameInTemporaryContext(ChainBranchUtils.java:100)
	at com.atlassian.bamboo.plan.branch.ChainBranchUtils.getChainBranchName(ChainBranchUtils.java:95)
	at com.atlassian.bamboo.ww2.beans.DecoratedNavObjectFactoryImpl.getSubstitutedBranchName(DecoratedNavObjectFactoryImpl.java:132)