Comment # 6 on bug 1033098 from zhilong liu

(In reply to Neil Brown from comment #5)
> I was curious so I used git-bisect to find out when this was fixed.
> It was fixed by
> Commit: 8e7ddc5f50af ("Grow: fix problem with --grow --continue")
> in mdadm 3.3.3
> 
> We like to keep Leap42.1 the same as SLE12-SP1, so it might be good to
> backport this patch to SLE12-SP1 and then submit that to Leap42.1.  Maybe.

I would verify this commit on Leap42.1 today. 
"In addition, I'm writing one email to ask for help about --size feature."

Thanks,
-Zhilong