steps to reproduce

1. load the attached file

current result

The each returns an integer 0 for an empty list on <forEach>

debug info

• this bug happens since 8.0.4. Previous versions don't have this bug.
• it's critical to users because it will cause an exception like "Property 'name' not found on type java.lang.Integer". Since users usually access a property on each inside <forEach> like

  <forEach items="@load(vm.columnList)" >
  	<column
  		label="@load(each.dataType.name)"
  		width="150px" />
  </forEach>