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Summary:
I have a UIView which conforms to the UITextInput protocol.  I have a subclass of UITextRange (NBTextRange) and UITextPosition (NBTextPosition) which I use with it.
If I press the up key 4 times, then the down key 3 times, then tap in a UITextField and press the down key Apple's SDK seems to be hanging on to one of my NBTextPosition objects and sending it a message it can't respond to - webVisiblePosition in iOS 6, offset in iOS 7.  Logs attached

Steps to Reproduce:
I haven't tested this so simplistically, but basically:
1. Create a UIView subclass which conforms to the UITextInput Protocol and uses custom UITextPosition and UITextRange classes
2. Make it first responder
3. Up 4 times, down 3 times
4. Make a UITextField first responder
5. Hit down

Expected Results:
Not crash

Actual Results:
Crash

Version:
6, 7

Notes:


Configuration:
iOS 6 and 7 simulator (tested)

Attachments:
'logs.txt' was successfully uploaded.

17-Sep-2013
I said 4 and 3, but if I go up once, tap the UITextField and use the down key it crashes the same.

31-Oct-2013
Please could I have a status update on this bug report as it has been nearly 2 months since opening with no response

22-Nov-2013
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