Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 436.02
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: rBf6cb5f54494e
Short description of error
If you add object as hook to curve vertex when it's vertex parented to this object, you get a crash.
Exact steps for others to reproduce the error
Add curve. Add mesh. Select curve, then mesh, vertex parent curve to mesh.
Select mesh, than curve, select vertex of curve and add object as hook.