Open Radar

 
Summary:
When the keyboard is open and changes to a pad with different size (e.g. from standard to number, or from standard with correction to standard without correction), the events UIKeyboardWillChangeFrameNotification and UIKeyboardDidChangeFrameNotification do not fire.

Steps to Reproduce:
1. Create an app with two text inputs. One with a standard pad with correction on, one with the number pad. Listen to UIKeyboardWillChangeFrameNotification and UIKeyboardDidChangeFrameNotification. 
2. Open app.
3. Tap on standard input.
4. Tap on number input.

Expected Results:
UIKeyboardWillChangeFrameNotification and UIKeyboardDidChangeFrameNotification should fire at step 3 and 4.

Actual Results:
UIKeyboardWillChangeFrameNotification and UIKeyboardDidChangeFrameNotification fire at step 3, but not at step 4.

Version:
iOS 9.0 (13A4325c)

Notes:
The keyboard correctly changes to the number pad. However, an error is logged: "Can't find keyplane that supports type 4 for keyboard iPhone-Portrait-NumberPad; using 563160167_Portrait_iPhone-Simple-Pad_Default"

Configuration:
iPhone 5s 32GB using WiFi