Operating system: Linux-4.18.0-2-amd64-x86_64-with-debian-buster-sid 64 Bits
Graphics card: GeForce GTX 780/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 410.78
Broken: version: 2.80 (sub 74), branch: blender2.7, commit date: 2019-06-09 21:43, hash: rB030c7df19da9
Short description of error
Adding a scene strip to the sequencer with python lead to a crash, this doesn't append when it's added regularely through the UI.
Exact steps for others to reproduce the error
Open the attached file, it contains 2 scenes and a small python script ,
the script just add the second scene to the first one as a sequencer strip.
Running the script should lead to a crash.