Database backup inserting weird characters into links

Hi,

I know this is a little off-topic, but I’m hoping somebody’s seen this issue before.

When I export my WP database using PHPMyAdmin, it seems to be inserting strange characters into some of my internal links, in comments and in posts.

For example:

<a href="/news/post.html">

becomes

<a href="/news/post.html?phpMyAdmin=A9edxzeaAYUKC7gEkIK1roHD2Zf">

The link is displayed correctly on the site, and when I browse into the database, the additional characters are not present. This issue only presents itself when I backup then restore the database.

All of my export settings are exactly what the codex recommends in the instructions on backing up your database, but when I look at the exported SQL file, I see all these strange links (which become broken upon restore).

Thanks for any insight or direction.