Possible bug with colvis, hide show columns and datatable

Hi

Been using your plugin for a while now, I really like it (including the users).
Today the users ran into an issue:

- Type search in some column filter (say column 8, the result from the search would be 3 rows)
- Hide a column (say column 1)
- Clear the filter (instead of getting the full resultset the resultset stays with the same 3 rows)

If you show column 1 and clear the filter they get the full dataset.

I inspected the post request that is made to the server, the field for the column 8 is not cleared in this case.

The snippet I use:

oTable = $("#filter_table").dataTable({
			"sDom": '<"top"<"clear">iflp<"clear">C<"clear">rt>rt<"bottom"iflp<"clear">>',
			"bJQueryUI": false,
			"bStateSave": false,
			"oColVis": {
				"buttonText": "Show / hide columns",
				"bRestore": true,
				"sAlign": "left"
			},
			"aaSorting": [ [11,'desc'] ],
			"oLanguage": {
				"sLengthMenu": 'Display <select>'+
						'<option value="10">10</option>'+
						'<option value="20">20</option>'+
						'<option value="30">30</option>'+
						'<option value="40">40</option>'+
						'<option value="50">50</option>'+
						'<option value="-1">All</option>'+
						'</select> records'
			},
			"bProcessing": true,
			"bServerSide": true,
			"sAjaxSource": "<?php echo site_url() . '/filter/ajax_filter/' . $rig_id; ?>",
			"fnServerData": function ( sSource, aoData, fnCallback ) {
				$.ajax({
					"dataType": 'json',
					"type": "POST",
					"url": sSource,
					"data": aoData,
					"success": fnCallback,
					"cache": false
				});
			}
		});

$("thead input").keyup( function () {
			/* Filter on the column (the index) of this element */
			oTable.fnFilter( this.value, $("thead input").index(this) );
		} );

		/*
		 * Support functions to provide a little bit of 'user friendlyness' to the textboxes in
		 * the footer
		 */
		$("thead input").each( function (i) {
			asInitVals[i] = this.value;
		} );

		$("thead input").focus( function () {
			if ( this.className == "search_init" )
			{
				this.className = "";
				this.value = "";
			}
		} );

		$("thead input").blur( function (i) {
			if ( this.value == "" )
			{
				this.className = "search_init";
				this.value = asInitVals[$("thead input").index(this)];
			}
		} );

Cheers
Flakron