if I press enter after typing a value in the VARIABLE field of a bookmarked query, it's the query displayed above which is executed, not the bookmarked one
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I can confirm this in 3.4.9. The problem seems to be that when you "press enter after typing a value in the VARIABLE field of a bookmarked query", the button in the "Run SQL query/queries on database $db" ( #button_submit_query ) is triggered instead of #button_submit_bookmark in the "Bookmarked SQL query" section. That happens because button_submit_query has a tabindex="200" defined, whereas #button_submit_bookmark does not.
Accepted patch from http://repo.or.cz/w/phpmyadmin/alexukf.git, bug_3464377 branch.