Bug number 1374604 regarding tracker-extract crash is referenced a lot but does not exist?

If searching for
"tracker-extract crashed with SIGABRT in g_malloc"
there are 8 listed, and openly available bug reports referencing
"*** This bug is a duplicate of bug 1374604 ***"
    https://bugs.launchpad.net/bugs/1374604

But that page does not exist... - gives me the following message:

" This page does not exist, or you may not have permission to see it.

If you have been to this page before, it is possible it has been removed.

If you got here from a link elsewhere on Launchpad, sorry about that. We’ve recorded the problem, and we’ll fix it as soon as we can.

Otherwise, complain to the maintainers of the page that linked here.

If this is blocking your work, let us know by asking a question at Launchpad Support. Include the error ID OOPS-de36f7633c4f2c3a89e328a9831da680 in your message. "