Bug report
The new feature in 0.12.15 Unmatched ignored error for a specific file reported in that file (phpstan/phpstan-src@3b0c6a2) always triggers when the specified file isn't included as argument to analyse.
i.e. if I have and ignore pattern on src/fileA.php and run php analyse src/fileB.php you'll always get an "unmatched ignored" error.