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Is there a way to combine a defined set of extension properties into `ListProperty` ignoring non-configured `Provider`s? So far `ListProperty` complains that provider does not have value configured. Example of what I want to do:
```val listOfString = objects.listProperty&lt;String&gt;()
val firstProvider = objects.property&lt;String&gt;()
val secondProvider = objects.property&lt;String&gt;().convention("two")
listOfString.add(firstProvider)
listOfString.add(secondProvider)

logger.warn("ZZZ: ${listOfString.get()}")```

So far I've come up with hacky way of having two `ListProperty` where for first one empty providers will  return some object via `.orElse(EMPTY)` which will be filtered in the second `ListProperty`.

But maybe there is a better way :thinking_face:

Gradle 8.7 provides append/appendAll methods: <https://docs.gradle.org/current/release-notes.html#build-authoring-improvements|https://docs.gradle.org/current/release-notes.html#build-authoring-improvements>. Before that you can do something like `listProperty.addAll(firstProvider.map { listOf(it) }.orElse(emptyList()))` 