#8 Abstract elements remain visible

[sporgenza]

Abstract elements remain visible on the palette and also may be added to the canvas in the generated editor.
A simple example (element hierachy in the meta model editor):
RootElement (abstract) <-is contained-- Child1 (abstract) <-inherits-- Child1.1 (abstract) <-inherits-- Child1.1.1

RootElement, Child1, Child1.1, and Child1.1.1 are visible
My expectation was that only Child1.1.1 is visible since it is the only non-abstract element.

[sporgenza]

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I just figured out that the above error report is only valid if I launch the generated editor with the configuration recommended in the tutorial (Plug-ins option "all-workspace and enabled target projects" enabled).
If I, however, restrict the selection of plugins to those that are required by chosing "plugins selected below only" and just select the required plug-ins, the error is gone.

[sporgenza]

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I could narrow the error down to the org.gems.desginer.dsml.styles plugin-in. Whenenver it is acitvated, the error occurs. However, when it is deacitvated features like views and a more convenient entity rendering cease to work.