anchor.diff:  // CONSOLE
   // TEST[continued]
   
  -[float]
   [[aliases-routing]]
   ===== Routing
   
  
positive.code: --------------------------------------------------
  // CONSOLE
  // TEST[s/^/PUT test\nPUT test2\n/]
  
  [IMPORTANT]
  =====================================
  Aliases that do not explicitly set `is_write_index: true` for an index, and
  only reference one index, will have that referenced index behave as if it is the write index
  until an additional index is referenced. At that point, there will be no write index and
  writes will be rejected.
  =====================================
  
negative.code: --------------------------------------------------
  // CONSOLE
  // TEST[continued]
  
  [[indices-aliases-api-rename-alias-ex]]
  ===== Rename an alias
  
  Renaming an alias is a simple `remove` then `add` operation within the
  same API. This operation is atomic, no need to worry about a short
  