applySnapshot does not call preProcessSnapshot when using types.snapshotProcessor

Bug report

• [v] I've checked documentation and searched for existing issues
• [v] I've made sure my project is based on the latest MST version
• [v] Fork this code sandbox or another minimal reproduction.

Sandbox link or minimal reproduction code https://codesandbox.io/embed/mobx-state-tree-todolist-1o4pm

Describe the expected behavior applySnapshot will call preProcessSnapshot and postProcessSnapshot

Describe the observed behavior applySnapshot called only postProcessSnapshot