Image field AJAX error

Was testing the patch in http://drupal.org/node/606130 and got the following error - had added an image field to the Article content type, and then went to add content, with the patch, the photo uploaded fine, but when I went to save the node, got the error at URL http://localhost.drupal7/file/ajax/field_image/zxx/0/form-e91f6733e8490f... instead of the node page. The node did NOT save.

http://skitch.com/arianek/ndcgg/mozilla-firefox

[{"command":"settings","argument":[{"basePath":"\/"},{"ajax":{"edit-field-image-zxx-0-upload-button":{"url":"\/file\/ajax\/field_image\/zxx\/0\/form-e91f6733e8490f2079f3ca3845b82639","event":"mousedown","keypress":true,"wrapper":"edit-field-image-zxx-0-ajax-wrapper","selector":"#edit-field-image-zxx-0-upload-button","effect":"fade","speed":"fade","method":"replace","progress":{"type":"throbber","message":null},"button":{"field_image_zxx_0_upload_button":"Upload"},"formPath":"field_image\/zxx\/0\/upload_button"}}},{"ajax":{"edit-field-image-zxx-0-remove-button":{"url":"\/file\/ajax\/field_image\/zxx\/0\/form-e91f6733e8490f2079f3ca3845b82639","event":"mousedown","keypress":true,"wrapper":"edit-field-image-zxx-0-ajax-wrapper","selector":"#edit-field-image-zxx-0-remove-button","effect":"none","speed":"none","method":"replace","progress":{"type":"throbber","message":null},"button":{"field_image_zxx_0_remove_button":"Remove"},"formPath":"field_image\/zxx\/0\/remove_button"}}}]},{"command":"insert","method":"replaceWith","selector":null,"data":"\x3cdiv class=\"messages error\"\x3e\n\x3ch2 class=\"element-invisible\"\x3eError message\x3c\/h2\x3e\nThe path is already in use.\x3c\/div\x3e\n\x3cdiv id=\"edit-field-image-zxx-0-ajax-wrapper\"\x3e\x3cdiv class=\"form-item form-type-managed-file form-item-field-image-zxx-0\"\x3e\n \x3clabel for=\"edit-field-image-zxx-0\"\x3eimage \x3c\/label\x3e\n \x3cdiv class=\"image-widget form-managed-file clearfix\"\x3e\x3cdiv class=\"image-preview\"\x3e\x3cimg src=\"http:\/\/localhost.drupal7\/sites\/localhost.drupal7\/files\/styles\/thumbnail\/blue.jpg\" alt=\"\" title=\"\" \/\x3e\x3c\/div\x3e\x3cdiv class=\"image-widget-data\"\x3e\x3cspan class=\"file\"\x3e\x3cimg class=\"file-icon\" alt=\"\" title=\"image\/jpeg\" src=\"\/modules\/file\/icons\/image-x-generic.png\" \/\x3e \x3ca href=\"http:\/\/localhost.drupal7\/sites\/localhost.drupal7\/files\/blue.jpg\" type=\"image\/jpeg; length=78231\"\x3eblue.jpg\x3c\/a\x3e\x3c\/span\x3e \x3cspan class=\"file-size\"\x3e(76.4 KB)\x3c\/span\x3e \x3cinput type=\"submit\" name=\"field_image_zxx_0_remove_button\" id=\"edit-field-image-zxx-0-remove-button\" value=\"Remove\" class=\"form-submit\" \/\x3e\n\x3cinput type=\"hidden\" name=\"field_image[zxx][0][fid]\" id=\"edit-field-image-zxx-0-fid\" value=\"2\" \/\x3e\n\x3cinput type=\"hidden\" name=\"field_image[zxx][0][display]\" id=\"edit-field-image-zxx-0-display\" value=\"1\" \/\x3e\n\x3c\/div\x3e\x3c\/div\x3e\n\x3c\/div\x3e\n\x3c\/div\x3e\x3cspan class=\"ajax-new-content\"\x3e\x3c\/span\x3e","settings":{"basePath":"\/","ajax":{"edit-field-image-zxx-0-upload-button":{"url":"\/file\/ajax\/field_image\/zxx\/0\/form-e91f6733e8490f2079f3ca3845b82639","event":"mousedown","keypress":true,"wrapper":"edit-field-image-zxx-0-ajax-wrapper","selector":"#edit-field-image-zxx-0-upload-button","effect":"fade","speed":"fade","method":"replace","progress":{"type":"throbber","message":null},"button":{"field_image_zxx_0_upload_button":"Upload"},"formPath":"field_image\/zxx\/0\/upload_button"},"edit-field-image-zxx-0-remove-button":{"url":"\/file\/ajax\/field_image\/zxx\/0\/form-e91f6733e8490f2079f3ca3845b82639","event":"mousedown","keypress":true,"wrapper":"edit-field-image-zxx-0-ajax-wrapper","selector":"#edit-field-image-zxx-0-remove-button","effect":"none","speed":"none","method":"replace","progress":{"type":"throbber","message":null},"button":{"field_image_zxx_0_remove_button":"Remove"},"formPath":"field_image\/zxx\/0\/remove_button"}}}}]