Karaf 4 (or general?): Unable to find a matching constructor on class org.opendaylight.aaa.idm.AaaIdmLight for arguments [...]

As part of overall GENIUS-82 genius Karaf 4 testing, today I'm seeing this:

opendaylight-user@root> feature:install odl-genius-ui

(... wait a bit ...)

opendaylight-user@root>diag
ODL :: aaa :: aaa-idmlight (174)
--------------------------------
Status: Failure
Blueprint
13/6/17 2:50 PM
Exception:
Unable to find a matching constructor on class org.opendaylight.aaa.idm.AaaIdmLight for arguments [IdmConfig{getDefaultStore=H2DataStore, getTimeToLive=36000, getTimeToWait=3600, augmentations={}}, org.apache.aries.blueprint.container.ReferenceRecipe$ServiceProxyWrapper@6f828d4f, org.apache.aries.blueprint.container.ReferenceRecipe$ServiceProxyWrapper@46041d48] when instanciating bean AAAIDMLight
org.osgi.service.blueprint.container.ComponentDefinitionException: Unable to find a matching constructor on class org.opendaylight.aaa.idm.AaaIdmLight for arguments [IdmConfig{getDefaultStore=H2DataStore, getTimeToLive=36000, getTimeToWait=3600, augmentations={}}, org.apache.aries.blueprint.container.ReferenceRecipe$ServiceProxyWrapper@6f828d4f, org.apache.aries.blueprint.container.ReferenceRecipe$ServiceProxyWrapper@46041d48] when instanciating bean AAAIDMLight
at org.apache.aries.blueprint.container.BeanRecipe.getInstanceFromType(BeanRecipe.java:354)
(...)