ios - UIWindow endDisablingInterfaceAutorotationAnimated error appears in console when holding down return key on keyboard -

in app have autoresizing textview inside scrollview.

but strange warning if select textview hold down return key on keyboard few seconds:

[uiwindow enddisablinginterfaceautorotationanimated:] called on <uiremotekeyboardwindow: 0x12fa626b0; frame = (0 0; 414 736); opaque = no; autoresize = w+h; layer = <uiwindowlayer: 0x12fa625c0>> without matching -begindisablinginterfaceautorotation. ignoring. 

if select textview , click/tap once on keyboards return key error not show in console, gets displayed if press/hold down return key few seconds.

the error seem show when testing on ios9

i have looked this: uiwindow enddisablinginterfaceautorotationanimated error appears in console when keyboard dismissed interactively collectionview in ios9 only

but have no idea whats causing this..