GUI.TextField - Android: Unfocusing with click instead of Ok-button causes critical error

I use GUI.TextFields for getting user input. When clicking the field, the keyboard appears as it should and the only way to get off the GUI.TextField is to click the "Ok"-button next to the input field.

This worked fine with Galaxy S and Galaxy S2, but on Galaxy S3 you could unfocus the GUI.Textfield by clicking outside the keyboard. This caused a bug where it started pasting the same text to all fields you touched afterwards and you could not open up the keyboard again. Only way to fix this was to reboot the application.

Are there this kind of behaviour on other phones as well? How could this be fixed?