If you close and re-open the tab everything is fine. If you switch to another tab and then back, things are fine except for the tab in the tab bar. Looking closer, this is caused by a load order issue where `TodayPane.updateDisplay` gets called before `TodayPane.onLoad`, and so `TodayPane.paneViews` is still null. The attached patch improves things but does not fully solve them. With the patch only the left hand sidebar (with the minimonth etc.) is blank rather than the whole tab's UI being off. I've looked briefly at an approach of calling `TodayPane.onLoad` if needed when `TodayPane.updateDisplay` is called, but `onLoad` is async and `updateDisplay` is not. So you end up having a domino effect of switching functions from sync to async. I also tried calling `ltnOnLoad` near the top of `OnLoadMessenger`, but that did not fix the problem.
Bug 1615453 Comment 0 Edit History
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If you close and re-open the tab everything is fine. If you switch to another tab and then back, things are fine except for the tab's icon and title in the tab bar. Looking closer, this is caused by a load order issue where `TodayPane.updateDisplay` gets called before `TodayPane.onLoad`, and so `TodayPane.paneViews` is still null. The attached patch improves things but does not fully solve them. With the patch only the left hand sidebar (with the minimonth etc.) is blank rather than the whole tab's UI being off. I've looked briefly at an approach of calling `TodayPane.onLoad` if needed when `TodayPane.updateDisplay` is called, but `onLoad` is async and `updateDisplay` is not. So you end up having a domino effect of switching functions from sync to async. I also tried calling `ltnOnLoad` near the top of `OnLoadMessenger`, but that did not fix the problem.