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Summary:

In iOS 6, -[UIReferenceLibraryViewController dictionaryHasDefinitionForTerm:] returns NO for all inputs. This prevents any use of the UIReferenceLibraryViewController.


A sample project is attached illustrating the following two methods for reproduction.

Steps to Reproduce:

- Method 1: 
1. Invoke -[UIReferenceLibraryViewController dictionaryHasDefinitionForTerm:] with an arbitrary word known to have a definition (in versions of the iOS SDK prior to 6.0), e.g. "test".

- Method 2:
1. Open an arbitrary webpage in Mobile Safari, or a UIWebView in the iOS 6 simulator, e.g. http://en.wikipedia.org/wiki/Inklings.
2. Select an arbitrary word known to have a definition (in versions of the iOS SDK prior to 6.0), e.g. "group", (the last word in the introduction).

Expected Results:

- Method 1:
-[UIReferenceLibraryViewController dictionaryHasDefinitionForTerm:] returns YES.

- Method 2:
When the selection menu appears, it should show the "Define" menu item.

Actual Results:

- Method 1:
-[UIReferenceLibraryViewController dictionaryHasDefinitionForTerm:] returns NO.

- Method 2:
When the selection menu appears, it does not show the "Define" menu item.

Regression:

This is a regression since iOS 5.1.

Notes:

In both Methods 1 and 2, following the steps to reproduce results in the following message being logged to the console:
"+[_UIDictionaryWrapper _availableDictionaryAssets] returned nothing. Error: Error Domain=ASError Code=4 "The operation couldn’t be completed. (ASError error 4 - Unable to copy asset information)" UserInfo=0x71933a0 {NSDescription=Unable to copy asset information}"