[DMN Designer] DMN 1.1 model can not be fixed to proper DMN 1.2

The [^Vacation Day Count - Solution 1.dmn] is an DMN 1.1 model downloaded from an external tool.

After opening [^Vacation Day Count - Solution 1.dmn] in decision central, there are missing connections:

• Age -> Three extra days rule
• Age -> Two extra days rule
• Years of service -> Three extra days rule
• Years of service -> Two extra days rule

Next, nodes data types shown in properties are:

• Age: Nothing Selected
• Years of service: Nothing selected
• Five extra days rule: <Undefined>
• Three extra days rule: <Undefined>
• Two extra days rule: <Undefined>
• Number of vacation: <Undefined>

All decision tables have their input columns set to type: feel:number
All decision tables have their output columns set to type: <Undefined>

Even after changing all data types to 'number' and adding missing connections, there are still errors in the form:

Required dependency '_e1e247a4-6e54-4e72-93b6-78ae8606b44d' on node '_e1e247a4-6e54-4e72-93b6-78ae8606b44d' does not match the node type

[^Vacation Day Count - Solution 1 - dmn13.dmn] is DMN 1.3 version of [^Vacation Day Count - Solution 1.dmn] downloaded from the same tool. If this is opened in the decision central:

• All connections are present
• All nodes have valid DMN built in data type set
• All decision tables have all columns set to valid DMN built in data type
• There is no validation error shown, just warnings about decision table hit policies and possible gaps

Expected behavior

User should be able, even semi manually, to fix [^Vacation Day Count - Solution 1.dmn] validation errors