Nested modifiers cause duplicate elements error

[Per Östlund]

The following model causes the duplicate elements error to be triggered, but it shouldn't since the elements are identical if modifiers are applied correctly.

model A
  Real x(start = 2.0);
end A;

model B
  Real x(start = 2.0, min = 3.0);
end B;

model C
  extends A(x(min = 3.0));
  extends B;
end C;

This affects some fluid models like Modelica.Fluid.Examples.Explanatory.MomentumBalanceFittings. We have a special case in Inst.checkMultipleElementsIdentical for ​Modelica issue #627, but that issue has been fixed. Removing that case will still cause some models to fail because of this issue though, so if this is fixed we should remove that case.

[Martin Sjölund]

Postponed until 1.9.1

[Martin Sjölund]

This ticket was not closed for 1.9.1, which has now been released. It was batch modified for milestone 1.9.2 (but maybe an empty milestone was more appropriate; feel free to change it).

[Martin Sjölund]

Milestone changed to 1.9.3 since 1.9.2 was released.

[Martin Sjölund]

Moved to new milestone 1.9.4

[Martin Sjölund]

Milestone pushed to 1.9.5

[Martin Sjölund]

Milestone renamed

[Martin Sjölund]

Ticket retargeted after milestone closed

[Martin Sjölund]

Milestone moved to 1.12.0 due to 1.11.0 already being released.

[Francesco Casella]

The new front-end handles this without errors:

class P.C
  Real x(min = 3.0, start = 2.0);
end P.C;