[Webkit-unassigned] [Bug 149035] New: 'relative' positioned child element not repainted completely if parent's style.display is set to 'none'

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=149035

            Bug ID: 149035
           Summary: 'relative' positioned child element not repainted
                    completely if parent's style.display is set to 'none'
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: g.ludwikowsk at samsung.com

Created attachment 260919
  --> https://bugs.webkit.org/attachment.cgi?id=260919&action=review
Minimal testcase for reproduction.

Reproduction: see minimal_testcase_webkit.html, click 'NEW' button. It sets 'NEW' button parent div's 'style.display' to none, but some part of the 'NEW' button isn't repainted/cleared. If 'BACK' button is pressed, the 'NEW' button is correctly repainted/shown back to screen.