Minor issue in the SFC shortcut function

[chenhanpolyu]

Recently I read your code about generating the shortcut SFC, and I found this line is kind of confusing. Maybe it should be "i= j;"?, or could you explain the reason why it should be "i = j+1"?
In my understanding, when you find two polyhedrons that connect to each other, you should keep the newly connected polyhedron as the short SFC's tail and find another polyhedron to connect to it (but not choose the former polyhedron as the SFC tail).

[ChanJoon]

@chenhanpolyu Did you find your own answer? I also wonder why.