ios - EXC_BAD_ACCESS Cmd+Left/Right in UItextView -

steps crash:

• сreate "simple view application".
• add textview , set properties(you can see in code bellow).
• cursor should between points in center of field.(you should add long string see points in center)
• connect bluetooth keyboard device.
• move cursor center of field
• press cmd+left/right
• always crash

it code rote:

#import "viewcontroller.h"  @interface viewcontroller ()  @property (weak, nonatomic) iboutlet uitextview *textview;  @end  @implementation viewcontroller  - (void)viewdidload {     [super viewdidload];     self.textview.textcontainer.maximumnumberoflines = 1;     self.textview.textcontainer.linebreakmode = nslinebreakbytruncatingmiddle; }  @end 

crash info: nothing in logs, just: in uitextview error: memory read failed 0x0

i can't find problem on stackoverflow or in internet. has ideas it? or report apple?

tested on:

• ipad 4 ios 8.3(12f69)
• ipad mini 9 betta 3(13a4293g)