RangeError: Maximum call stack size exceeded (3.0.0-7, React 19)

[iantrudell]

🐛 Bug Report

On React 19 using "next" (3.0.0-7), the following error now appears that did not appear on React 18, v2.x

Maximum call stack size exceeded
RangeError: Maximum call stack size exceeded
    at isSpecial (/node_modules/.vite/deps/react-joyride.js?v=d9fbf3fb:140:23)
    at Object.isMergeableObject2 [as isMergeableObject] (/node_modules/.vite/deps/react-joyride.js?v=d9fbf3fb:135:41)
    at mergeObject (/node_modules/.vite/deps/react-joyride.js?v=d9fbf3fb:187:19)
    at deepmerge4 (/node_modules/.vite/deps/react-joyride.js?v=d9fbf3fb:217:16)
    at cloneUnlessOtherwiseSpecified (/node_modules/.vite/deps/react-joyride.js?v=d9fbf3fb:153:76)
    at /node_modules/.vite/deps/react-joyride.js?v=d9fbf3fb:199:30
    at Array.forEach (<anonymous>)
    at mergeObject (/node_modules/.vite/deps/react-joyride.js?v=d9fbf3fb:192:23)
    at deepmerge4 (/node_modules/.vite/deps/react-joyride.js?v=d9fbf3fb:217:16)
    at cloneUnlessOtherwiseSpecified (/node_modules/.vite/deps/react-joyride.js?v=d9fbf3fb:153:76)

To Reproduce

Create state like this:

import { Step } from 'react-joyride'
interface JoyrideState {
    run: boolean
    steps: Step[]
    stepIndex?: number
}
export default JoyrideState

import Joyride, { CallBackProps, STATUS } from 'react-joyride'
import JoyrideState from '@/features/resources/components/JoyrideState'
const Home = () => {
    const [{ run, steps }, setJoyrideState] = useState<JoyrideState>({
        run: false,
        steps: [
            {
                content: (
                    <>
                        <div className='header'>Header</div>
                        <div className='body'>Body</div>
                    </>
                ),
                locale: { skip: <strong aria-label='skip'>Skip</strong> },
                floaterProps: {
                    disableAnimation: true,
                },
                target: '.some-target',
                disableBeacon: true,
            }
        ]
    })
}

Expected behavior

No stack overflow

Link to repl or repo (highly encouraged)

Will edit this later to create a sandbox

Run npx envinfo --system --binaries --npmPackages react-joyride

Paste the results here:

System:
    OS: Windows 10 10.0.19045
    CPU: (20) x64 12th Gen Intel(R) Core(TM) i7-12700H
    Memory: 37.44 GB / 63.64 GB
  Binaries:
    Node: 20.15.1 - C:\Program Files\nodejs\node.EXE
    npm: 10.7.0 - C:\Program Files\nodejs\npm.CMD
    bun: 1.1.38 - ~\.bun\bin\bun.EXE
  npmPackages:
    react-joyride: next => 3.0.0-7