Equivalence check for diagrams (in Arranger) ignores disabled state of elements

[codemanyak]

When diagrams are added to Arranger, they are checked for name collision and, in this case, for structural and textual equivalence. This check reports diagrams with different disablements (as their only difference) as being equivalent though, which isn't actually correct, e.g. though both diagrams differ (albeit slightly): In general, differing disablements in otherwise identical diagrams should be regarded as different diagrams.

[codemanyak]

Behaviour rectified (fix prepared for version 3.32-16).