Filter wp_get_object_terms sends the wrong $taxonomies value

[PhoenixML]

In the function wp_get_object_terms(), at the end, the value of $taxonomies (which should either be a slug string or an array of slugs) is overwritten and becomes a string from the sql query with single quotes before it is sent through the filter 'wp_get_object_terms'.

Example: " 'category,'post_tags' "
It should be: array('category', 'post_tags')

[SergeyBiryukov]

Duplicate of #18828.