System Information
Windows 10 Pro 1709
RX Vega 56 8GB
Ryzen 1600
16GB DDR4

Blender Version
Blender 2.8 Alpha (Hash: 1112f49)

Short description of error

Trying to scale the cursor with the cursos tool active crashes blender.

Exact steps for others to reproduce the error

1 - Select cursor tool
2 - Press the left mouse button to move
3 - While pressing the left mouse button, try to scale.