Is this correct practice to reinitialise a UI with the current values of a reactive entity?

[sbo]

I currently have the following problem: I have a UI component containing a selectInput.

 binaryAnalysisInputUI <- function(id, selection_table) {
   ns <- NS(id)
   return(
     fluidRow(
       column(12,
         h4("Options"),
         selectInput(
           ns("outcomeSelect"),
           "Outcome",
           choices = c())
       )
     )
   )
 
 }
 
 binaryAnalysisInputServer <- function(input, output, session,
                                       selection_table ) {
   binary_names <- SelectionTable$SelectionTable_getNamesForType(
     selection_table,
     "binary")
 
   observeEvent({ binary_names() }, {
     updateSelectInput(session, "outcomeSelect", choices=binary_names())
   })
   return(reactive({input$outcomeSelect}))
}

This UI component is rendered conditionally in a containing UI element server, like this:

  output$analysisInputUi <- renderUI({
    if (input$typeSelect == "binary") {
      return(binaryAnalysisInput$binaryAnalysisInputUI(session$ns("binaryAnalysisInputUi")))
    } else if (input$typeSelect == "continuous") { 
  return(continuousAnalysisInput$continuousAnalysisInputUI(session$ns("continuousAnalysisInputUi")))
    }

Now the problem is that when I switch between the two, the accumulated visual state is of course thrown away. The select input will be empty. I expected this, and compensated by passing the appropriate value at the UI, then compute the choice from it in an isolated context.

binaryAnalysisInputUI <- function(id, selection_table) {
  ns <- NS(id)
  binary_names <- isolate(SelectionTable$SelectionTable_getNamesForType(
    selection_table,
    "binary"))
  return(
    fluidRow(
      column(12,
        h4("Options"),
        selectInput(
          ns("outcomeSelect"),
          "Outcome",
          choices = binary_names())
      )
    )
  )
}

This post is to verify my question: is this the expected way to deal with conditional rendering in shiny, and if yes, how is initialisation against reactive values generally performed?