mobx-state-tree: Cannot resolve a reference with multiple candidates (two model instances with same identifier)

Bug report

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Describe the expected behavior I have a Base model that is composed in two places one, two in the store tree. This model uses nested models Country and City. I add a new country and a new city in both places with the same identifiers. The cities are also placed in an array of references at the country model. Now I want to get the cities of a country by reading the list of cities references.

Describe the observed behavior When trying to get the list of cities from references list of Country model, the following error throws:

[mobx-state-tree] Cannot resolve a reference to type 'late(function () {
    return City;
  })' with id: '1000' unambigously, there are multiple candidates: /one/cities/1000, /two/cities/1000

The same is NOT happening when trying to get a country, even though there are multiple countries with the same identifier, but not in a list of references.

It seams that resolving an item by its reference identifier not working if there are multiple items with the same identifier.