A bend will only be drawn when the second half of the bend is next sequential element.

I.e. 10-20-30 will draw a bend if 20-30 follows after 10-20, and bend is applied on 10-20.

However, 10-20-30 will not draw a bend in any of the following cases:

1.
10-20 (bend)
100-110
20-30

2.
20-10 (bend)
20-30

3.
10-20 (bend)
30-20

etc.