clearer => 'clear_value',
);
-has '+is_modified' => (default => 0);
+# FIXME - Copied from Reaction::UI::ViewPort::Field::Role::Mutable
+# as we broke has '+attr' in Moose.
+has is_modified => ( #sould be bool?
+ is => 'ro', writer => '_set_modified',
+ required => 1, default => 0, init_arg => undef
+);
around value_string => sub {
my $orig = shift;