Describe the bug
When a featured image is added to a post or a page, the og:image meta tag is supposed to update using the thumbnail, but no tag is added.

To Reproduce
Steps to reproduce the behavior:

1. Install WordPress with BoldGrid Easy SEO
2. Create a post or a page, and add a featured image
3. Examine the post's source, and note that no tag is added

Expected behavior
The featured image should be used as the OpenGraph image.

Additional context
This issue is related to user feedback from the BoldGrid Forums.