R Shiny - Cannot retrieve value of input control created inside DT Table - r

Question

I was following this example from DT's official page to create input controls inside a DT table. I created something similar but I also needed an editable table. Due to which, I need to set server = TRUE in renderDT (Realized after RTFM that reloadData requires server = TRUE). So now I tried following this example of rendering checkbox input inside DT table but with server = TRUE. The issue is that now I am not able to fetch the values of input controls on server-side, which worked fine when server = FALSE. Can any one tell me how to retrieve the control values on the server side in this setup.
library(shiny)
library(DT)
shinyApp(
ui = fluidPage(
title = 'Radio buttons in a table',
DT::dataTableOutput('foo'),
verbatimTextOutput('sel')
),
server = function(input, output, session) {
m = matrix(
as.character(1:5), nrow = 12, ncol = 5, byrow = TRUE,
dimnames = list(month.abb, LETTERS[1:5])
)
for (i in seq_len(nrow(m))) {
m[i, ] = sprintf(
'<input type="radio" name="%s" value="%s"/>',
month.abb[i], m[i, ]
)
}
m
output$foo = DT::renderDataTable(
m, escape = FALSE, selection = 'none', server = TRUE,
options = list(dom = 't', paging = FALSE, ordering = FALSE),
callback = JS("table.rows().every(function(i, tab, row) {
var $this = $(this.node());
$this.attr('id', this.data()[0]);
$this.addClass('shiny-input-radiogroup');
});
Shiny.unbindAll(table.table().node());
Shiny.bindAll(table.table().node());")
)
output$sel = renderPrint({
str(sapply(month.abb, function(i) input[[i]]))
})
}
)