• fix: cloneInstance({ forkResourceStore: true }) now copies the resources at every level. It copied them only down to the namespace objects, so nested keys and arrays stayed shared with the original instance: addResource() with a nested key (fork.addResource('en', 'translation', 'greeting.hello', 'Hi')) or a deep addResourceBundle() on the fork also changed the original instance and every other fork. Flat keys were already isolated. Forking a large store takes a bit longer: with 300k keys in nested groups, about 11 ms instead of 3 ms per fork. Clones without forkResourceStore still share the store as before. Thanks @nk-batman21 (#2456, follow-up to #2270).