Console error "React keys must be passed directly to JSX without using spread"

[wimbarelds]

Describe the bug An error that frequently pops into the (chrome) console is:

Warning: A props object containing a "key" prop is being spread into JSX:
  let props = {key: someKey, readOnly: ..., type: ..., name: ..., context: ..., getPConnect: ..., additionalProps: ..., validatemessage: ..., children: ...};
  <Connect(Reference2) {...props} />
React keys must be passed directly to JSX without using spread:
  let props = {readOnly: ..., type: ..., name: ..., context: ..., getPConnect: ..., additionalProps: ..., validatemessage: ..., children: ...};
  <Connect(Reference2) key={someKey} {...props} />

To Reproduce Steps to reproduce the behavior:

1. Go to any page using a reference/View rendered using PConnectComponent (in SDK-Portal?)
2. See error

Expected behavior No error.

Screenshots

Additional context

The error is causes by:

https://github.com/pegasystems/react-sdk-components/blob/master/packages/react-sdk-components/src/bridge/react_pconnect.jsx:284-290

Current code:

    // If the new component is a reference node then mark with a unique key
    if (['reference', 'View'].includes(getPConnect().getComponentName()) && !finalProps.key) {
      finalProps.key = this.getKey();
    }

    // console.log(`react_pconnect: used to return: <this.Control {...finalProps} />`);

    return <this.Control {...finalProps}>{this.createChildren()}</this.Control>;

Code that fixes the error:

    // If the new component is a reference node then mark with a unique key
    if (['reference', 'View'].includes(getPConnect().getComponentName()) && !finalProps.key) {
      return <this.Control {...finalProps} key={this.getKey()}>{this.createChildren()}</this.Control>;
    }

    // console.log(`react_pconnect: used to return: <this.Control {...finalProps} />`);

    return <this.Control {...finalProps}>{this.createChildren()}</this.Control>;

[tumms2021389]

Thank you, @wimbarelds , for bringing up the issue. We'll investigate it and add a fix for it.