ACE editor selection problem (wikipedia JS code editor)

[Eccenux]

ACE editor is used for scripts (JS).

Seems like ACE is randomly choosing not to select things.

Code:

setTimeout(function(){
	console.log('2 sek')
},7000)
setTimeout(function(){
	console.log('1 sek')
},8000)
setTimeout(function(){
	console.log(sel_t3.getSelection())
},9000)

Edit field:

a
b
c
d
e
f
g
h

"d.e.f" is selected (3 lines)

Object { isEditable: true, isInput: true, selected: "d\ne" }

CTRL+A selected (8 lines):

Object { isEditable: true, isInput: true, selected: "g\nh" }