smartGWT 4.1d TextItem behavior, backspace

Smart GWT 4.1d, january 12th 2014 build
Chrome MacOSX
Win7 IE11, Chrome


I have a simple TextItem in a DynamicForm.
I can type text in it and hit enter (that triggers a search in my app).
Now if I want to erase this text to submit another query, nothing happens (like frozen). Erase, backspace and arrow keys are not functional, like letters keys, etc.
But : I can use mouse to select all characters and then if I type new letters, previous ones are erased and net letters are typed in.

I have this behavior on Chrome and IE, but not with Firefox, with firefox everything is fine !
Everything was fine with SmartGWT 4.0. But I had to upgrade to support IE11.

Any hint ?
Thank you