UI: Cloud>NOdes screen can't display disk usage from replicas using non-standard core names (ie: implicit router)

Consider the following cluster w/three collections (including the gettingstarted collection created by the example)...

./solr/packaging/build/dev/bin/solr -e cloud -noprompt
curl -sS 'http://localhost:8983/solr/admin/collections?action=CREATE&name=named_shards&router.name=compositeId&numShards=2&shards=shardX,shardY'
curl -sS 'http://localhost:8983/solr/admin/collections?action=CREATE&name=implicit_named_shards&router.name=implicit&shards=shardA,shardB'

If you look at the Cloud>Nodes screen for this cluster, the "Disk Usage" (and other metrics) for the cores from the implicit_named_shards collection wound show up. (see screenshot)

The problem is that cloud.js expects core names to follow a very specific format, but implicit router names it's cores directly after the shard names specified.