The .. and ... have different meanings in the context of git diff and git log.

For example, git log A..B means something different compared to git log A...B

Also, the double and triple dots have to be reversed between git log and git diff to get the same effect.

i.e. git diff A..B would correspond to git log A...B and vice versa.

https://stackoverflow.com/questions/7251477/what-are-the-differences-between-double-dot-and-triple-dot-in-git-dif/46345364#46345364