[Webkit-unassigned] [Bug 159257] New: console.log doesn't display object correctly if followed by delete

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=159257

            Bug ID: 159257
           Summary: console.log doesn't display object correctly if
                    followed by delete
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: zajec5 at gmail.com

Created attachment 282338
  --> https://bugs.webkit.org/attachment.cgi?id=282338&action=review
Test case

If we log object right before deleting one of its properties a wrong version appears in the console.

Example:
var test = {};
test.foo = {};
test.foo.bar = "Lorem ipsum";
console.log(test);
delete test.foo.bar;

Logged object doesn't have "bar" property when using:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.21 (KHTML, like Gecko) rekonq/2.3.2 Safari/537.21

In the past we already had some problem with displaying objects with console.log (#35801) it looks like similar issue (does it help to find a solution?).

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