Operating system: Window 10
Graphics card: AMD Radeon
Short description of error
I can't undo when I do some mistakes and I lost all of my works.
Sometimes it completely undo to the beginning and I lost most of my work.
I thought it is fixed in blender 2.82a but no it is still on this version also.
Exact steps for others to reproduce the error
So open the blender create a cube move it around and also create a cylinder.
Now ctrl z to undo. And you will notice it doesn't undo as expected.