While dragging Animation curve from IMGUI highlights properties from the other windows which are in the background.

Steps to repro:
1. Open the attached Project
2. Menu > UIE Test Suite > Open FTP.
3. Bindings > Open window>IMGUI > Animation Curve Field
4.Select and drag curve from curve window

Actual Result:
While dragging curve inside the curve window, properties from the binding window are highlighted.

Expected Result:
While dragging curve, properties from other windows are not highlighted. Editor focuses is completely on the curve window

Reproducible in:
2020.1.0a2, 2019.3.0b1, 2019.3.0a1.

Working Fine in:
2019.2.0f1

Environment:
Windows10, Linux ubuntu 16.04 LTS & Mac 10.14.

Note: Refer attached video