[#4896] tweak re_path_portion_fragment so that 1- and 2- length fragments aren't dropped completely
[#4896] tweak re_path_portion_fragment so that 1- and 2- length fragments aren't dropped completely

apache/incubator-allura,apache/allura,lym/allura-git,apache/allura,heiths/allura,Bitergia/allura,lym/allura-git,heiths/allura,Bitergia/allura,heiths/allura,lym/allura-git,Bitergia/allura,heiths/allura,apache/incubator-allura,apache/allura,Bitergia/allura,lym/allura-git,heiths/allura,lym/allura-git,Bitergia/allura,apache/incubator-allura,apache/allura,apache/allura,apache/incubator-allura