fix immediatePropagation on collapsing
fix immediatePropagation on collapsing

floribon/handsontable,littleforeastli/handsontable,Cropster/handsontable,floribon/handsontable,Cropster/handsontable,littleforeastli/handsontable,rjansen72/handsontable,rjansen72/handsontable,floribon/handsontable,littleforeastli/handsontable,Cropster/handsontable