[Webkit-unassigned] [Bug 155786] New: WebKit nightly uses the built-in Safari engine instead of its own on OS X 10.11.4 El Capitan

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=155786

            Bug ID: 155786
           Summary: WebKit nightly uses the built-in Safari engine instead
                    of its own on OS X 10.11.4 El Capitan
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: m.goleb+bugzilla at gmail.com

Since I upgraded to the El Capitan 10.11.4 I can't get WebKit nightly to use its own engine:

1. There is no "Check for updates..." in the Safari menu.
2. It uses the built-in Safari 9 engine which can be easily verified by going to http://kangax.github.io/compat-table/es6/ and seeing how the results are identical to Safari 9, not WebKit ones.
3. If I open Safari, close it & then open WebKit I always get the popup with a message: "Your Safari extensions have been migrated.". Every single time.

I haven't had such problems in earlier OS X releases.

This is another incarnation of bug 149346 that appeared in 10.11.0 and was fixed a few months later. The bug is back. :(

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