ha:{root} [root] entries: 5
 ha:{src1} entries: 2
  te:{key11} {val11}
  te:{key12} {val12}
 ha:{src2} entries: 2
  sy:{lnk} {/}
  te:{key21} {val21}
 ha:{dst} entries: 4
  sy:{lnk} {/}
  te:{key1} {val1}
  te:{key2} {val2}
  li:{recurse} FIRST te:{} LAST te:{}
   te:{} {r1}
   te:{} {r2}
   te:{} {r3}
 ha:{src3} entries: 2
  te:{key31} {val31}
  sy:{lnk} {foo}
 ha:{src4} entries: 2
  li:{recurse} FIRST te:{} LAST te:{}
   te:{} {R40}
   te:{} {R41}
  te:{key41} {val41}
