FlowDivider missing equation?

Question❓

Hydraulic components - FlowDivider.
I see a commented line in equations which should define a dm on port_b. Is it missing something or does it work just fine? What was the idea?
Thank you.

    eqs = [connect(port_a, port_b, open.port)
           dm_a ~ port_a.dm
           dm_b ~ dm_a / n
           open.dm ~ dm_a - dm_b # extra flow dumps into an open port
           # port_b.dm ~ dm_b # divided flow goes to port_b
           ]

@bradcarman

Locate the FlowDivider implementation and inspect the equations block containing the commented port_b.dm line. Check how connect(port_a, port_b, open.port) determines the port flow variables and whether the component has coverage elsewhere. Done means establishing whether the equation is intentionally inferred or missing, then recording the confirmed behavior or a concrete correction.