After installing Finder 7.x-2.0 and configuring an autocomplete jump menu, I observed three error messages displaying:
Notice: Undefined index: path in metatag_views_post_render() (line 1685 of [...]/metatag/metatag.module).
I tracked these error messages down to a non-existent views display (page_6, one increment higher than the previous existing one). I'm guessing that Finder is performing some kind of wizardry that conflicts with Metatag's expectations for a display path in hook_views_post_render(). I'll attach a simple patch that alleviates the issue.