Bug: Sidebar note switches back to default display unexpectedly

[ReporterX]

• Browser version: 66.03
• Extension version: 1.2.7
• Operating system: Windows 7

I have yet to spot an exact pattern to reproduce this bug. Sometimes it happens if you do the following.

The default display is general note.

Let's say you have Window A and Window B. Window B has sidebar note opened. You switch the display to URL note.

You go to Window A. Switch to several tabs, viewing pages etc.

Then go back to Window B. Expected: The sidebar note stays the same, displaying URL note. Actual: Sometimes It suddenly switches back to general note.

It does not always happen. You may try several times. Open different tabs. Switch display to different notes. Browse away. Do some actions. Switch back. Let's see if you can trigger that bug.