Fix filtering by region in feed elements with fireplace (bug 1061206)
fix feed view serializing promo collections with bg images (bug 1061647)
Merge pull request #2526 from ngokevin/coll

fix feed view serializing promo collections with bg images (bug 1061647)
Merge pull request #2525 from diox/fix-feed-collections-region-filtering

Fix filtering by region in feed elements with fireplace (bug 1061206)