[bug #59775] "error: mark_as_constructed: invalid object" when constructor returns classdef array

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Follow-up Comment #4, bug #59775 (group octave):

Adding two examples to recreate the issue.

classdef mre2
    properties
        A
    end
    methods
        function obj = mre2(a)
            if nargin > 0
                if isscalar(a)
                    obj.A = a;
                else
                    obj(size(a)) = mre2();
                    c = num2cell(a);
                    [obj.A] = c{:};
                end
            end
        end
    end
end


octave:40> m = mre2([1,2,3]);
error: mark_as_constructed: invalid object
octave:41> 


classdef mre3
    properties
        A
    end
    methods
        function obj = mre3(a)
            if nargin > 0
                if isscalar(a)
                    obj.A = a;
                else
                    obj(size(a)) = mre3();
                    for kk = 1:numel(a)
                        obj(kk).A = a(kk);
                    end
                end
            end
        end
    end
end


octave:41> m = mre3([1,2,3]);
error: mark_as_constructed: invalid object
octave:42> 




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