Fixed disconnect when selecting new SSPs and output variables

Selecting a new output variable now draws the chosen SSP from the R6 class rather than the shiny input, ensuring that it uses the SSPs that were selected at the time "Load Graph" was last clicked (or when app was opened). This does impact plotting (and downloading data) -- when you change output variables, it will only plot one SSP and you have to click Load Graph to show both again.

inst/shinyApp/components/modules/mod_run.R

@@ -148,7 +148,7 @@ run_server <- function(id, r6) {
             r6$selected_var <- reactive({input$variable})
             runs <- list()
 
-            for(i in 1:length(input$ssp_path)) {
+            for(i in 1:length(r6$ini_file)) {
                 runs[[i]] <- fetchvars(r6$core[[i]], r6$time()[1]:r6$time()[2], vars = list(r6$selected_var())) %>%
                     mutate(Scenario = names(which(scenarios == input$ssp_path[i], arr.ind = FALSE)))
             }