Only set Back link when first report pulled in.
Only set Back link when first report pulled in.

Otherwise subsequent report views set the Back link to a report URI, so
clicking it goes back to the list but with an incorrect address.

mhalden/fixmystreet,altinukshini/lokalizo,mhalden/fixmystreet,dracos/fixmystreet,altinukshini/lokalizo,altinukshini/lokalizo,rbgdigital/fixmystreet,rbgdigital/fixmystreet,rbgdigital/fixmystreet,altinukshini/lokalizo,mhalden/fixmystreet,dracos/fixmystreet,altinukshini/lokalizo,mhalden/fixmystreet,dracos/fixmystreet,rbgdigital/fixmystreet,dracos/fixmystreet,altinukshini/lokalizo,rbgdigital/fixmystreet,dracos/fixmystreet,mhalden/fixmystreet,mhalden/fixmystreet,rbgdigital/fixmystreet,dracos/fixmystreet