Quickly: You can have set _default_ ACLs on some 'directory' and then extract archive into this directory, e.g. by 'tar --acls -xf archive -C directory'. Currently, the _default_ ACLs of extracted files underneath that directory contain mix of default ACLs from archive and from previous filesystem defaults (inherited from 'directory'). The output should reflect what is in archive. Upstream thread with fix: http://www.mail-archive.com/bug-tar@gnu.org/msg04355.html
tar-1.26-31.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/tar-1.26-31.fc20
Package tar-1.26-31.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 tar-1.26-31.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-4716/tar-1.26-31.fc20 then log in and leave karma (feedback).
tar-1.26-31.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.