Component becomes "stuck" to cursor

[jeremyreffin]

Describe the bug
if I select from a subcomponent pick list in some components (e.g. DSM/DTM component) then I can't "unstick" the component from my cursor properly.

To Reproduce
Open a sublist on a component and select something. Component becomes stuck to the cursor.

Expected behavior
Right click and ignore the Delete/Clone option unstick it but it's new behaviour and not expected.

Screenshots
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Additional context
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[paulthatjazz]

Had a look at this today, seems to be a firefox issue. Clicking on a SelectControl triggers the rete's drag logic. Looking for a method to override this.