Operating system: Win 7 64-Bit
Graphics card: GTX 1060
Broken: (example: 2.80, edbf15d3c044, master, 2018-11-28, as found on the splash screen)
When doing things in Grease Pencil Edit Mode such as: adjusting stroke thickness, skewing, scaling. And doing any of those multiple times in a row. The undo only lets me undo those 3 steps back, even if in the preferences, the max number of undos is 32.
steps to reproduce:
Draw a grease pencil stroke, then scale it/ skew it/ or adjust the thickness a couple of times in Edit Mode and press ctrl+z a couple of times.