33603 - rapid clicking on scroll buttons causes drawing artifacts

Status: VERIFIED DUPLICATE of bug 33602

(Core Graveyard :: GFX, defect, P3)

Description

[kaldari]

Steps to Reproduce: On any scrollable page, click on one of the scroll buttons
in rapid succession.

Actual Results: Page scrolls faster than Mozilla can
redraw, resulting in
artifacts at either the top or bottom of the page, i.e.
each 'line'
(approximately 10 pixels) of screen may be repeated up to three
times. The more
you scroll rapidly, the more artifacts build up. The display is
rendered
correctly if you force the window to redraw, for example, dragging
another
window over the affected window.

Expected Results: The page should
render correctly once scrolling is complete
regardless of the means or speed of
scrolling.

Build Date & Platform: M14 MacOS

Additional Information: Bug does
not occur when scrolling with the arrow keys,
only when clicking on the scroll
buttons.

Comment 1

[kaldari]

*** This bug has been marked as a duplicate of 33602 ***

Comment 2

[Adam]

Verified dup of bug 33602