Inconsistent formatting in Nomad template

HCL Template

resources {
  cpu    = 100
  memory = 64

  network {
    mbits = 1
    port  "https"{}
  }
}

Expected behavior

I would expect there to be one space between port and "https" and one space between "https" and the curly braces after formatting (I'm using hclfmt).

Actual behavior

See hcl above for results. Though if you put a newline between mbits and port, you do see the expected formatting after hclfmt.

resources {
  cpu    = 100
  memory = 64

  network {
    mbits = 1

    port "https" {}
  }
}

Start by reproducing the formatting difference with the two HCL snippets using hclfmt, focusing on the network block and the adjacent mbits and port attributes. Trace the formatter entry point that handles these attributes and verify the result against the expected spacing, including the case where no blank line separates them.