Publishing a "Gallery" post format breaks index/archival pages in Twenty Ten

[avcascade]

When a "gallery" type post is published in WordPress 3.1-bleeding, WordPress spits out this error and quits rendering the page in the browser. This occurs on the main page and archival pages in Twenty Ten 1.3-alpha, with no plugins active:

Catchable fatal error: Object of class WP_Error could not be converted to string in /home/username/domain/wp-content/themes/twentyten/loop.php on line 92

Unpublishing the gallery post (reverting it to draft status) causes the error to go away.

This error does not appear when viewing the permalinked post. Only on the index page and archival pages (category view, month view, etc.)

It may have been fixed already, but I updated to the latest nightly build using WP Beta Tester and the issue persists.

[nacin]

sing a post format, but inside the condition, we're assuming it's categories soon.

I imagine a few things may need to be patched in loop.php due to this.

Related, #15378, which will introduce what we'll be linking to, a format archive.

[nacin]

(In [16589]) Only link to the Gallery category if the post is in the category. (It may be a format.) see #15506, see #15378.

[avcascade]

Looks like error is gone in latest beta (3.1-beta1-16590). Nice work.

[nacin]

Left this open so we'd restore the link after #15378 was handled.

I can add this link back now.

[nacin]

(In [16782]) Add 'View Galleries' link for post formats. fixes #15506.