reactiveValues are weird and dont copy on modify

app.R

library(shiny)

ui <- fluidPage(
  actionButton("debug", "DEBUG")
)

server <- function(input, output, session) {
  
 inputs <- reactiveValues(a = 1)
 new_inputs <- inputs
 
 observeEvent(input$debug, {
    
    print("---- inputs ---")
    print(lobstr::obj_addr(inputs))
    print("---- inputs$a ---")
    print(lobstr::obj_addr(inputs$a))
    
    # MAKE A CHANGE TO THE COPY
    new_inputs$a <- 2
    print(" ----- CHANGED COPY ----- ")
    
    # THE ORIGINAL INPUT IS CHANGED!!!
    print("---- inputs ---")
    print(lobstr::obj_addr(inputs))
    print("---- inputs$a ---")
    print(lobstr::obj_addr(inputs$a))
    
    
    print("---- new_inputs ---")
    print(lobstr::obj_addr(new_inputs))
    print("---- new_inputs$a ---")
    print(lobstr::obj_addr(new_inputs$a))
 })
 
 # but this isnt triggered?!
 observeEvent(inputs, {
   # browser()
 })
  
}

shinyApp(ui, server)