Choices derived enum-properties types do not unpack member tuples on declaration

[bckohan]

For example, should be able to do this:

        class AliasesFlag(FlagChoices):
            A = 1 << 0, "a"
            B = 1 << 1, "b"
            C = 1 << 2, "c"
            AB = A | B, "ab"
            BC = B | C, "bc"
            ABC = A | B | C, "abc"

But have to do this:

        class AliasesFlag(FlagChoices):
            A = 1 << 0, "a"
            B = 1 << 1, "b"
            C = 1 << 2, "c"
            AB = A[0] | B[0], "ab"
            BC = B[0] | C[0], "bc"
            ABC = A[0] | B[0] | C[0], "abc"

This is a result of an awkward interaction between the ChoicesType and the enum-properties metaclass. When just a label is present the logic that unpacks member tuples is not run by the class dictionary.

[bckohan]

As a side effect of the updates in enum-properties 2.4.0 on Python 3.14+ this actually works...