rhandsontable : pasting non-conform date formats not allowed.

[andrejadd]

Only a single date format is accepted and and cell becomes <NA> if it does not match.

Problem: hot_to_r() only sees the <NA>, and there is no chance to translate to correct format.

Note: The rhandsontable object has a parameter of the SampleDate column set to TRUE: input$tbl_conc_nd$params$columns[[3]]$correctFormat

This might prevent that the original pasted date is send to the server.