MVEL raising errors for declared types when there is a package import (import x.y.x.*)

The following DRL:
===================================================
package org.drools.examples.broker

import org.drools.examples.broker.model.*;

dialect "mvel"

declare Statistics
symbol : String @key()
average : double
end

rule "Setup statistics"
when
$c : Company( $s : symbol )
not( Statistics( symbol == $s ) )
then
Statistics s = new Statistics();
s.symbol = $s;
insert( s );
end
===================================================

Generates the error:

-----------------------------
BuildError: Unable to build expression for 'consequence': Failed to compile: 1 compilation error(s):

• (1,10) unqualified type in strict mode for: Statistics ' Statistics s = new Statistics();
  s.symbol = $s;
  insert( s );
  ' broker.drl drools-examples-fusion/src/main/rules line 42 Drools Error
  -----------------------------

But if we change the import to:
===================================================
import org.drools.examples.broker.model.Company
import org.drools.examples.broker.model.StockTick
import org.drools.examples.broker.model.SuddenDropEvent
===================================================

Everything works just fine.