Crash: TypeError: Cannot assign to read only property 'components' of object '#<Object>'

[euvs]

Describe the bug

I'm using RedocStandalone react component to render open api spec object.

<RedocStandalone  spec={graphqlServerResp.openAPI3Schema}  />

I'm getting this crash:

TypeError: Cannot assign to read only property 'components' of object '#<Object>'

I tracked down the place where the crash is happening. It's in @redocly/openapi-core package on this line:
https://github.com/Redocly/redocly-cli/blob/a3f955768baf6875911324582bc1f5c6c72b29ad/packages/core/src/bundle.ts#L260

The code tries to modify the passed object but fails. I believe it is caused by the fact that the spec object is being immutable.

To workaround the problem I make a copy of an object before passing it in to the component like so

<RedocStandalone  spec={{...graphqlServerResp.openAPI3Schema}}  />

and the crash is gone.

To Reproduce
Pass an immutable spec object.

Expected behavior
No crash