Links in Confluence are appearing "inconsistent" across the site when the custom link color under Look & Feel > Colour Scheme is changed

Summary

Links in Confluence are appearing "inconsistent" across the site when the custom link color under Look & Feel > Colour Scheme is changed.

Environment

Confluence 6.7.0, 6.7.1

Steps to Reproduce

1. Go to cog icon
2. Go to General Configuration
3. Go to the Look and Feel section and click Colour Scheme
4. Click Edit under Custom Colour Scheme
5. Change the link color to a color that is different than the default
6. Click Confluence in the top left corner to return to the home page
7. If you click on the individual spaces, there is no link color change
8. When you click on a link, only then will the link color change
9. If you clicked All from the home dashboard sidebar, you will see the new link color
10. When you navigate to the space, the link format doesn't bold when visiting the link but appear as you've visited the page by showing a darker shade of the link

Expected Results

Have the standard font style. Bolded when navigated to the page and unbolded when it is not in use

Actual Results

Links are changing color once you've visited a page and you can't revert the color until you've cleared the cache of the browser

Notes

No customizations present in testing other than link color

Workaround

Restoring to default colour scheme (though that is not an option for some our customers because of their logos)