System Information
Operating system: Linux-5.7.8-200.fc32.x86_64-x86_64-with-fedora-32-Thirty_Two 64 Bits
Graphics card: GeForce RTX 2080 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.95.01

Blender Version
Broken: version: 2.90.0 Alpha, branch: master, commit date: 2020-07-19 21:23, hash: rB78e40ad21f5b
Worked: (newest version of Blender that worked as expected)

Short description of error
Blender crashes on loop cut on resized cube.

Exact steps for others to reproduce the error

1. Resize default cube on Y direction to make it longer
2. Go to edit mode and apply loop cut

Blender crashes.