ChangeListeners get the same model change

[litvinovg]

Describe the bug
ChangeListener's receive the same modelChanges, which is not thread-safe and causes difficulties while working with serialized model.

To Reproduce
Steps to reproduce the behavior:

1. Create two ChangeListeners
2. Use getSerializedModel in both listeners to get serialized model changes
3. See that only the first one recieves model changes as the InputStream is read by first one.

Expected behavior
The ChangeListener should receive model changes that are not affected by other ModelChangeListener actions.
Both ChangeListeners should receive serialized model changes.

[brianjlowe]

We should see how this relates to #3129 and what might have changed in the meantime.