I'm working on integrating meltdown with annotator and found a weird error where the control buttons would get duplicated on reloads after the meltdown editor was initialized. Screenshot of the duplicated controls attached since it's a bit difficult to describe (and the error was actually compounded and became much worse on subsequent loads).

I've made an adjustment so that annotator controls are only added after the first ul, not every ul element inside the annotation editor widget, and it resolves the problem.