Key Path Operators Not Supported on Child Key Path

[aksuska]

At least when loaded from cib, the following key path generates an exception: collectionKeyPath.@sum.valueKeyPath but this usage is canonical in Objective-C. The error is "CPInvalidArgumentException: [CPArray addObserver:forKeyPath:options:context:] is not supported." In this case, the KVC implementation should ignore the intermediate observation as the preceding key should always produce an array (or set if you support those operators, but same issue).

[cappbot]

Milestone: Someday. Label: #new. What's next? A reviewer should examine this issue.

[daboe01]

-#new
+bindings
+#needs-patch
+feature

[cappbot]

Milestone: Someday. Labels: #needs-patch, bindings, feature. What's next? This issue needs a volunteer to write and submit code to address it.