Fix bug introduced in 3c240fe19174385e710186d65b2a25dae8b1ab65
Merge pull request #1983 from michael-e/fix-the-fixed-core-fields

Fix bug introduced in 3c240fe19174385e710186d65b2a25dae8b1ab65
Merge branch 'integration' of https://github.com/symphonycms/symphony-2 into integration