[Bug 29382] New: Internet Explorer 8's developer tools window hangs after changing document mode

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=29382

             Bug #: 29382
           Summary: Internet Explorer 8's developer tools window hangs
                    after changing document mode
           Product: Wine
           Version: 1.3.35
          Platform: x86-64
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: oleaut32
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: RandomAccountName at mail.com
                CC: julliard at winehq.org
    Classification: Unclassified
   Regression SHA1: 38a797990c8f55e96baa15c82004eff3abf96f7b


Created attachment 38029
  --> http://bugs.winehq.org/attachment.cgi?id=38029
Terminal output

IE8 has a feature that allows changing the display of the current page to match
IE7 or quirks mode, accessible from the developer tools window. This works
once, but the window becomes unresponsive afterward. That didn't happen in
1.3.20:

38a797990c8f55e96baa15c82004eff3abf96f7b is the first bad commit
commit 38a797990c8f55e96baa15c82004eff3abf96f7b
Author: Alexandre Julliard <julliard at winehq.org>
Date:   Wed May 18 11:35:17 2011 +0200

    oleaut32: Reallocate in BSTR_UserUnmarshal to avoid changing the pointer if
the string didn't change.

:040000 040000 6243ab6decb7555fbfdbb09bf490094a411b6565
92a9d6d153648c49e5b3a9ad89c904917e51a8e7 M    dlls

Reverting the patch fixed the problem. Steps to reproduce:

1. winetricks ie8
2. Start IE8 and press F12
3. After the developer tools window appears, press Alt+7

It should reload the current page's HTML source, but instead it just shows
"loading..." and the window cannot be interacted with any further.

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