Doubling group changes

[brun0xon]

Hello. There is a bag:
My situation:

    var changes = ChangeStack();
    var a = 0;
    var change = Change.inline(() => a++, () => a--);

    changes.group();
    changes.add(change);
    print(a); // 1
    changes.add(change);
    print(a); // 2
    changes.commit();
    print(a); // 4

Situation in your example:

count = 0;

changes.group();

var increase = new Change.inline(() => count++, () => count--);
changes.add(increase);
changes.add(increase);

changes.commit();
print(count); // 2

changes.undo();
print(count); // 0

Plugin: undo 1.1.0+1

[rodydavis]

Fixed on 1.2.0, Refactored and should work as expected. There is a new interface but I updated the example and should be easier to use

[brun0xon]

Good!