When I edit a method in a class, the cursor is not visible

[jayfoad]

When I do )ed ⎕se.SALTUtils.isDir, an editor pops up showing the SALTUtils class. The cursor is on line 1532, correctly, but the window is scrolled so that only lines 1465-1519 are visible.

IDE:
Version: 4.0.2646
Platform: Linux x86_64
Date: 2017-02-17 09:10:54 +0100
Git commit: d7ff624
Preferences:{
"otherExe":"apl"
}

Interpreter:
Version: 16.0.29281
Platform: Linux-64
Edition: Unicode/64
Date: Feb 23 2017 at 09:45:40

[jayfoad]

I think the problem is in Ed.open():

cm.setCursor(line,col);cm.scrollIntoView(null,ed.dom.clientHeight/2)

At this point:
ed.dom.clientHeight is 961 (the size the editor will have)
cm.getScrollInfo().clientHeight is only 284 (I guess because it hasn't yet been fully laid out)