Fix: change event listener was not yet registered.
Fix: change event listener was not yet registered.

copyliu/osmium,copyliu/osmium,wffurr/osmium,wffurr/osmium,wffurr/osmium,osmium-org/osmium,osmium-org/osmium,osmium-org/osmium,osmium-org/osmium,wffurr/osmium,copyliu/osmium