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If I have many files opened and change active tab, very often Navigator is not updated and display data of previous file (or pre-previous, or pre-pre-pre...) It seems to be type of file is not valuable - php, css, js... I see this behavior in 7.0m2 (PHP), but on 6.9.1 everything is good.
*** This bug has been marked as a duplicate of bug 191289 ***