Extra corner annotation container

[hunterhector]

Describe the bug
There are extra corner annotation box at the end of some lines.

To Reproduce
Steps to reproduce the behavior:

1. This can be reproduced using the example DB data: abc0009
2. Select sentence in legend
3. Resize the window to appropriate sizes (I can reproduce the error at many different dimensions).

Expected behavior
One continuous annotation in the same line should be rendered as one annotation. However, at the right corner of the text area, sometimes we can see one additional annotation above white spaces.

The following two screenshots show the problem, at the same line, there are two annotations for data id 940, the one at the corner seems to be unnecessary.

Screenshots

---

Environment

• OS: macOS Catalina 10.15.5
• Browser: Chrome

[hunterhector]

Closed since cannot reproduce at current version.