Loop and firstItem parameters doesn't work together

Is this a bug report, a feature request, or a question?

Bug Report

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Have you made sure that it wasn’t a React Native bug?

It seems to be an plugin implementation bug.

Is the bug specific to iOS or Android? Or can it be reproduced on both platforms?

Both Platforms

Is the bug reproductible in a production environment (not a debug one)?

Both environments

Environment

“react”: “16.5.0”, “react-native”: “0.57.1”, “react-native-snap-carousel”: “3.7.5”,

Using scrollview implementation or flatlist

Expected Behavior

The first banner to appear in the screen must be the one at the index 0 or any configured with firstItem parameter.

Actual Behavior

Carousel starts showing the central banner of the array and ignores any argument used in firstItem parameter.

Sample Code

<Carousel
                              data={this.state.bannerList}
                              renderItem={({item, index}) => {
                                  return (<BannerCarrouselItem item={item}/>)
                              }}
                              sliderWidth={this.windowWidth}
                              itemWidth={this.windowWidth}
                              inactiveSlideOpacity={1}
                              inactiveSlideScale={1}
                              useScrollView={true}
                              loop={true} />

https://snack.expo.io/@calindratech/carousel-loop-vs-firstitem

Steps to Reproduce

The first render of the component is already enough to reproduce this behaviour.

[phonganhhung9xtb]

+1, when set loop = true, first item rendered incorrect!

[atulmy]

This stills seems to not work.