Decrements counter?

[davidosomething]

<?php
    $sponsor_info  = array(
        'na|me'    => $promoter_info[0]->post_title,
        'content' => $promoter_info[0]->post_content,
    );

cursor at the |, surround replace around ' with " (switch to double quote) causes the [0] to decrement (like C-x) (using recommended mapping and keys: sra'"

[rhysd]

I'm closing this because it is not reproducible now. If someone is facing this problem, please let me know by commenting here.