Count increases by 1 in `ios.json` every time I build

- Recently, I added the following to my `config.xml` to enable file sharing within my app.

```xml

```

- This works fine. However, every time I build my app (`npm run prod`), a related `count` item within `platforms/ios/ios.json` increments by `1`. This appears to have no maximum value and will continue to grow as I build my app. I'm also not quite sure of its purpose.
- To note, other entries within this file also have a `count` item, but they remain at `1`.

```json
{
"config_munge": {
"files": {
"*-Info.plist": {
"parents": {
"UIFileSharingEnabled": [
{
"xml": "",
"count": 1 <-- 1, 2, 3... 999999999
}
]
}
}
}
}
}
```

- A bit of digging and I found the offending code, which led me to this repo. Any ideas why it might be doing this? Is it a bug or am I doing something wrong? Is it supposed to work like this? Any help would be much appreciated.

https://github.com/apache/cordova-common/blob/72aa215bdb3561073a39029738a4f87ecffa99d8/src/ConfigChanges/munge-util.js#L56

Start at src/ConfigChanges/munge-util.js around line 56 and reproduce the issue with repeated npm run prod builds using the shown config.xml entry. Trace how the UIFileSharingEnabled config is merged into platforms/ios/ios.json; done means repeated builds leave the count stable, with the behavior verified against the reported JSON output.

Written by the indexing model from the issue text.