UITextFieldBug

Demo project of a bug on UITextField in iOS 8.1, different vertical text alignment between editing and not editing mode when using some fonts.

Reproducibility

Always

Affected versions/devices

All tested devices (and simulator) with iOS 8.1, iOS 8.0 not tested. In iOS 7.1 the bug is not present

Steps to reproduce

Add a UITextField
Set the font to Helvetica Neue Light 17 or a text style like UIFontTextStyleBody or UIFontTextStyleHeadline. May happen with other fonts
Run
Tap on the text field

Expected results

The text don't moves

Actual results

When the text field becomes the first responder the text moves up a few pixels:

Workaround

So far no workaround found to use with a custom font