Summary:
Selection boxes disappear when one of the selected annotations is a line--Upon moving the multiple selection with a cursor, any annotation selected before the last line annotation was selected will not have a blue selection box. This creates a very confusing user experience because it looks like you're only moving the line annotation.

Steps to reproduce issue:
- Select multiple annotations
- Include a line annotation in the multiple selection
- Click and drag the selection

Expected result:
- All selected annotations should have a blue selection box representing the move

Observed result:
- Only the last selected line annotation and any annotation selected after it has a blue selection box. Any annotation selected before the last selected line annotation disappears.

OS: macOS Catalina