onMomentumScrollEnd & onTouchStartCapture: wrong index

Which OS ?

MacOS: both iOS and Android simulator

Version

Which versions are you using:

• react-native-swiper v?
  react-native-swiper@v1.6.0-rc.3

• react-native v0.?.?
  "0.61.5"

Expected behaviour

Valid indexes on swipe forward and back. Actual log using v1.6.0-rc.2 which doesn't have an issue:

LOG index: 1 << yes, 1, as 0 is just dismissed
LOG index: 2
LOG index: 3 << just swiped to the last slide
LOG index: 2 << going back
LOG index: 1
LOG index: 0 << to the beginning

onTouchStartCapture has the same issue.

Actual behaviour

LOG index: 0 << it is an index of second view, expected "1"
LOG index: 1
LOG index: 2 << just swiped to the last slide
LOG index: 3 << I swiped back, but index is increased
LOG index: 2
LOG index: 1 << I'm on the first slide

How to reproduce it>

examples/components/Swiper/index.js with loop={false} doesn't work.
I couldn't build and run examples in forked project, too many errors (gyp, not found simulator, etc). So, I gave up fixing them and google solutions, and I just copied and pasted it to my own project.

Steps to reproduce

1. run the example examples/components/Swiper/index.js with loop={false}
2. swipe to the end and check log along the way
3. swipe to the beginning and check log along the way

Start with examples/components/Swiper/index.js and reproduce the loop={false} case while logging onMomentumScrollEnd and onTouchStartCapture during forward and backward swipes. Compare the callback indexes in react-native-swiper v1.6.0-rc.2 and v1.6.0-rc.3; done means the callbacks report the visible slide indexes from the first slide through the last and back.