[Webkit-unassigned] [Bug 144335] New: Applying a filter on a group which starts at a negative offset causes the group to be shifted to the left

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=144335

            Bug ID: 144335
           Summary: Applying a filter on a group which starts at a
                    negative offset causes the group to be shifted to the
                    left
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: SVG
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sabouhallawa at apple.com
                CC: zimmermann at kde.org

Created attachment 251853
  --> https://bugs.webkit.org/attachment.cgi?id=251853&action=review
test case

Open the attached test case. Maximize the screen resolution and the window as well.

Result: The two rectangles are shifted to the left.
Expected: The two rectangles should have the same size and the gap between them should be centered in the window.

Notes:
1. If the filter is removed from the group, the bug does not happen.
2. If the left rectangle starts at 0 instead of -1000 and its with becomes 900 instead of 1900, the bug does not happen.

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