UIInput multine caret position issue when holding a key

[AnotherBee]

Hi !

I found an issue when using UIInput, i'm on unity 5.6.0f3 and NGUI 3.11.4
If i hold a key until the text reaches the end of the line, the caret doesn't stay to the end of the input, it goes 1 caracter to the left for each new line.

I made a gif to explain the issue:
https://gyazo.com/f7892e7ea37df7070c97485fc285850f

This is the settings of the label linked to the UIInput:
https://gyazo.com/bc85baa31c3977d899b7ba1885436864

And this is the UIInput settings:
https://gyazo.com/1483f9c32b3c8db8617a24c2b1e852ae

I know this is an unusual typing for an input field, but since my users can enter whatever text they want, i creates an issue :\.

Thanks for reading !