A reactive variable create from the `Map` data while lost some new functions after use iterator methods like `values`

### Vue version

3.5.13

### Link to minimal reproduction

[Vue SFC Playground](https://play.vuejs.org/#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)

### Steps to reproduce

do nothing

### What is expected?

all result is `true`

### What is actually happening?

some method is lost

### System Info

```shell
System:
  OS: macOS 14.6.1
  CPU: (8) arm64 Apple M2
  Memory: 76.94 MB / 16.00 GB
  Shell: 5.9 - /bin/zsh
Binaries:
  Node: 22.12.0 - ~/.local/state/fnm_multishells/89642_1734598694517/bin/node
  npm: 10.9.0 - ~/.local/state/fnm_multishells/89642_1734598694517/bin/npm
  pnpm: 9.15.0 - ~/.local/state/fnm_multishells/89642_1734598694517/bin/pnpm
  bun: 1.1.39 - /opt/homebrew/bin/bun
Browsers:
  Edge: 127.0.2651.105
  Safari: 17.6
```


### Any additional comments?

nothing

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A reactive variable create from the `Map` data while lost some new functions after use iterator methods like `values` #12615

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A reactive variable create from the Map data while lost some new functions after use iterator methods like values #12615

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