// modify a1, so that a1,a3 are now blocked by a2
a1.setField2( "1" ); // Do
ksession.update( fa1,
a1 );
a1.setField2( "2" ); // Undo
ksession.update( fa1,
a1 );
// modify a2, so that a1,a2 are now blocked by a3
a2.setField2( "1" ); // Do
ksession.update( fa2,