In the meantime I also work under 1.14.2. The bug is still there. If I search with an e-mail address all tickets shows me.
If I replace the lines "$criteria = ['useremailsaddress', 'equal', $GET['query']];" with " $criteria = [':keywords', null, $GET['query']];" in the file scp/tickets.php, not all tickets are shown anymore, but sometimes wrong ones get mixed up.
Also, when the query "tickets.php?a=search&status=closed&uid=XXX" is executed, all tickets are displayed again.
Where can I find the class "AdhocSearch" ?