1074236 - A extra empty row appears when the tree scrolled to the bottom by clicking scroll arrow button

Status: RESOLVED DUPLICATE of bug 1066459

(Core :: XUL, defect)

Description

[Alice0775 White]

Attachment: screenshot

[Tracking Requested - why for this release]: regression

teps To Reproduce(for example):
1. Open https://developer.mozilla.org/en-US/Add-ons/Code_snippets
2. Open Page info dialog (click icon on location bar)
3. Select Media pane
4. Click down arrow button of tree view

Actual Results:
A empty row appears at the bootom of the tree

Regression window(m-i)
Good(but enexpected scrollbar apperas):
https://hg.mozilla.org/integration/mozilla-inbound/rev/ec4622e6e1fa
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:34.0) Gecko/20100101 Firefox/34.0 ID:20140822111353
Bad:
https://hg.mozilla.org/integration/mozilla-inbound/rev/4ef03db1385b
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:34.0) Gecko/20100101 Firefox/34.0 ID:20140822113357
Pushlog:
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=ec4622e6e1fa&tochange=4ef03db1385b


Regressed by: Bug 957445

Comment 1

[Alice0775 White]

This happens on Windows7 and Ubuntu12.04

Comment 2

[Yonggang Luo]

Thanks, this can be marked as a duplicated of #1066459