Currently the content package plugin includes the property cq:lastReplicationAction, but not the last publication date property, when downloading content from dam. this has a side effect, when activating a page with the reference to such an asset. Before activation the reference servlet tries to find any referenced assets, which may need activation as well. this results in a NPE, because the servlet tries to access the last replication date.
please document the exception that is thrown in error log then here as well for reference.
please try with 1.0.3-SNAPSHOT of aem-global-parent
hier is the exception thrown by the reference search servlet: