current upstream url is http://www.google.com/fonts/specimen/Tangerine and source to be used is http://googlefontdirectory.googlecode.com/hg/ofl/tangerine/Tangerine_Regular.ttf
tangerine-fonts-1.3-1.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/tangerine-fonts-1.3-1.fc20
Package tangerine-fonts-1.3-1.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing tangerine-fonts-1.3-1.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2013-18582/tangerine-fonts-1.3-1.fc20 then log in and leave karma (feedback).
tangerine-fonts-1.3-1.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.