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### Generated information

DevTools version: 4.13.1-93782cfed2

Call stack:
(none)

Component stack:
(none)

GitHub URL search query:
https://api.github.com/search/issues?q=Cannot%20add%20node%20%20because%20a%20node%20with%20that%20id%20is%20already%20in%20the%20Store.%20in%3Atitle%20is%3Aissue%20is%3Aopen%20is%3Apublic%20label%3A%22Component%3A%20Developer%20Tools%22%20repo%3Afacebook%2Freact
`Could not find ID for Fiber "${getDisplayNameForFiber(fiber) || ''}"`,
    );
  }
   Returns an ID if one has already been generated for the Fiber or null if one has not been generated.
   Use this method while e.g. logging to avoid over-retaining Fibers.
  function getFiberIDUnsafe(fiber: Fiber): number | null {
    if (fiberToIDMap.has(fiber)) {
      return ((fiberToIDMap.get(fiber): any): number);
    } else {
      const {alternate} = fiber;
      if (alternate !== null && fiberToIDMap.has(alternate)) {
        return ((fiberToIDMap.get(alternate): any): number);
      }
    }
    return null;
  }
   Removes a Fiber (and its alternate) from the Maps used to track their id.
   This method should always be called when a Fiber is unmounting.
  function untrackFiberID(fiber: Fiber) {
    const fiberID = getFiberIDUnsafe(fiber);
    if (fiberID !== null) {
      idToArbitraryFiberMap.delete(fiberID);
    }
    fiberToIDMap.delete(fiber);
    const {alternate} = fiber;
    if (alternate !== null) {
      fiberToIDMap.delete(alternate);
    }
  }
  function getChangeDescription(