Operating system: Linux-5.0.0-32-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: GeForce GTX 960/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.50
Broken: version: 2.82 (sub 6), branch: master, commit date: 2020-01-28 23:34, hash: rBf9e1e088a4c7
Exact steps for others to reproduce the error
Open attached file.
Note that the cube is set as a smoke inflow.
Bake the liquid domain.
Notice that liquid has come from the smoke emitter.
I have also had this happen in the reverse direction - smoke coming from the liquid inflow.