react-dropzone onDrop firing twice - reactjs

Question

So I'm trying to add a pretty simple file upload to my React + Redux App and I found that Dropzone to be the most convinient way to do it. Here's my setup.
I have a FileInput component
import React from 'react'
import Dropzone from 'react-dropzone'
class FileInput extends React.Component {
constructor(props) {
super(props);
this.onChange = this.onChange.bind(this);
}
onChange(files) {
// For Redux form
if (this.props.input) {
const {input: {onChange}} = this.props;
onChange(files[0])
}
else if(this.props.onChange){
this.props.onChange(files[0])
}
else{
console.warn('redux-form-dropzone => Forgot to pass onChange props ?');
}
}
render() {
return (
<Dropzone onDrop={ this.onChange } {...this.props} >
Drag&Drop the image <br/> or click to select one
</Dropzone>
)
}
}
export default FileInput
And I use it on tha page like this:
<FileInput
onChange={(file) => console.log('dropped', file)}
className='add-avatar-dropzone'
activeClassName='dropzone-active'
/>
(console.log used for debugging purposes ofcource)
But when I try to drop a file, I get 2 log outputs. The first being the file I dropped, the second - some kind of a Proxy, probably provided by react itself...
I wonder how to get rid of that proxy and why is it doing that in the first place?
Thing I tried
Couple obvious problem-points I tried to eliminate, but did not seem to make any change.
Renaming the onChange function to something else like handleDrop and rewriting it as handleDrop = (files) => {
Removing the constructor (seems weird to assign something to itself)

Answer 1

It ended up being a simple matter and it's really silly for me not to think of it.
The onChange prop in the code above got passed on to Dropzone and then to the input field, wich was the source of the confusion.
I modified the code to work like this:
render() {
const { onChange, ...rest } = this.props
return (
<Dropzone onDrop={ this.onChange } {...rest} >
Drag&Drop the image <br/> or click to select one
</Dropzone>
)
}
That works just fine