Add a test for date changes.
Add a test for date changes.

jinnovation/elfeed,seblemaguer/elfeed,holomorph/elfeed,emacsmirror/elfeed,algernon/elfeed,holomorph/elfeed,skeeto/elfeed,abo-abo/elfeed,daimrod/elfeed,skeeto/elfeed,algernon/elfeed,jinnovation/elfeed,emacsmirror/elfeed,seblemaguer/elfeed,daimrod/elfeed