don't clobber standard array attributes in subclasses that have their own array attributes

Author: plicease

lib/Module/Build/Base.pm

@@ -756,10 +756,7 @@ sub ACTION_config_data {
   }
 
   sub array_properties {
-    for (shift->_mb_classes) {
-      return @{$additive_properties{$_}->{ARRAY}}
-        if exists $additive_properties{$_}->{ARRAY};
-    }
+    map { exists $additive_properties{$_}->{ARRAY} ? @{$additive_properties{$_}->{ARRAY}} : () } shift->_mb_classes;
   }
 
   sub hash_properties {

t/add_property_array.t

@@ -0,0 +1,16 @@
+#!/usr/bin/perl -w
+
+use strict;
+use lib 't/lib';
+use MBTest tests => 1;
+
+blib_load 'Module::Build';
+
+ADDPROP: {
+  package My::Build::Prop;
+  use base 'Module::Build';
+  __PACKAGE__->add_property( 'list_property' => []);
+}
+
+ok grep { $_ eq 'bundle_inc' } My::Build::Prop->array_properties, "has bundle_inc even after adding another array property";
+