defaultValueExpression stopped working for specialized question types

[andrewtelnov]

The following JSON doesn't work since v1.9.115

  ComponentCollection.Instance.add({
    name: "newquestion",
    questionJSON: {
      type: "text",
      inputType: "number"
    },
  });
  const survey = new SurveyModel({
    elements: [
      { type: "newquestion", name: "q1" },
      { type: "newquestion", name: "q2" },
      { type: "newquestion", name: "q3", defaultValueExpression: "{q1} + {q2}" }],
  });

The regression was introduce after fixing a minor bug components&defaultValueExpression.
We did not have enough unit tests on this functionality.