Subgraph direction not always respected

[SandroK]

Describe the bug
The direction statement of a subgraph is not respected, when pointing at a node within the subgraph

To Reproduce
Compare the following charts, the subgraph direction is different, but shouldn't be

Pointing at the subchart as a whole, subchart direction is top to bottom

flowchart LR;
	subgraph c
		direction TB
		c1 --> c2
	end
	b --> c

Pointing at a node within the subchart, subchart direction is left to right (as the entire chart)

flowchart LR;
	subgraph c
		direction TB
		c1 --> c2
	end
	b --> c1

Expected behavior
Subgraph direction should be respected, independent of other nodes and connections

System info
I have tried on mermaid.live
I believe my system info sn't relevant

[Zingam]

flowchart LR
  start(START) --> user
  user(User UI) --> R_Server(Server) 

  subgraph R Server
    direction TB

    R_Server --> RMCE_Database[(Database)]
  end

  R_Server -->|Request| R_Agent(Agent)

  subgraph R Agent
    direction TB

    R_Agent --> DataCollect(((Data Collection)))
  end

  R_Agent -->|Response| R_Server

Loading

Not respected: direction TB for subgraphs.

Some hints about positioning the elements would be nice too.

[taranlu-houzz]

@SandroK I think this is a duplicate of #2509. I just ran into this recently as well.

[SandroK]

I'll accept that as a duplicate