onFocusableRerender calls updateDimensions() unsafely
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When a focusable GeneratedContentNode receives an update event, GCN causes a rerender and emits the rerender event. Focusable then calls updateDimensions(), but that's unsafe because at the time the update event was emitted, the linear model and the selection are out of sync.

Right now this doesn't cause any nastiness because updateDimensions() doesn't actually query the selection in these cases due to caching in getRelatedSources(), but that's fragile. Instead, maybe we should debounce this updateDimensions() call?

Catrope created this task.Mar 19 2015, 6:32 PM
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Jdforrester-WMF triaged this task as Normal priority.Jul 15 2015, 7:45 PM
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