Input Field on iOs - Done and Cancel button over text on iPad

Hi,

I am using 5.3.5f1 and for some time i have this issue. I have a multi-line input field and when it gets focus, the iOs keyboard shows, but after adding some lines you will see that the Done and Cancel button (and a useless top margin) are over the text. If you try to scroll down, you can see the text showing underneath the buttons and bounce back.

Here is an image showing it:



Here is a video too:

https://drive.google.com/open?id=0B0Mm3ZArnCqsNlBqczVqMC1vVTg

Does anyone know if there is a way to fix it or a bug issued or, at least, a workaround.

Thanks!