Tooltips do not disappear

[markgeraty]

If you type while an author tooltip is displayed over the timestamps, the tooltip will not go away when you move the mouse.

To recreate:

1. Click a line in the editor to put your cursor there
2. Hover over one of the timestamps in the editor so that the author's name displays
3. Type
4. Now move your mouse off of the timestamp
5. The tooltip stays

[markgeraty]

This is also especially bad during a replay! While the replay is happening, just hover up and down the timestamp column, and tooltips show up and never disappear.

[markgeraty]

It looks like bootstrap has an issue where, if an element is removed while the tooltip is shown, the tooltip won't go away. I think this explains our case, as we redraw the timestamps when the document changes.