Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: Intel(R) HD Graphics 520 Intel 4.5.0 - Build 184.108.40.20673
Broken: version: 2.80 (sub 74), branch: blender2.7, commit date: 2019-06-09 21:43, hash: rB030c7df19da9
Short description of error
The sticky option of the floor constraint does not work. I tried to use it in Blender 2.79 and it worked fine, so I'm pretty sure it's not user error on my end.
Exact steps for others to reproduce the error
The attached Blend file has a bone set up above a plane with it as its floor and the sticky option marked, but, if you try to move it across the floor, it will not stick. This is a new Blender file that I made specifically for this so there are not really many extra details involved. I created a plane object and then scaled it up. I then made a bone (raised it a little) and applied the bone constraint and checked "Sticky".