System Information
Xbuntu / AMD
Blender Version
e85aa8b
Short description of error
When working in the VSE, if you use box selection (B) all the marker lines get highlighter (turn white)
Exact steps for others to reproduce the error
New file
Go to the VSE
Create a few markers
Do box selection in the VSE (even though there's nothing in it)
...all the marker lines become highlighted...