[Webkit-unassigned] [Bug 216533] New: Modifying object created by Object.create from the prototype of HTMLElement modifies the original object

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=216533

            Bug ID: 216533
           Summary: Modifying object created by Object.create from the
                    prototype of HTMLElement modifies the original object
           Product: WebKit
           Version: Safari 13
          Hardware: Macintosh
                OS: macOS 10.15
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: bashorov at gmail.com

```
var p = Object.create(HTMLElement.prototype);
p.constructor = "foo";
console.log("!!!" + HTMLElement.prototype.constructor)
```

For Safari it prints:
```
!!!foo
```

For Chrome it prints:
```
!!!function HTMLElement() { [native code] }
```

For non HTML elements it works as expected.

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