commit 1bf33b4b3954cc7e8958d90c0dd02c1a108871d6
Author: Andrew Beekhof <andrew@beekhof.net>
Date:   Fri Aug 23 13:27:48 2013 +1000

    Fix: xml: Location constraints are allowed to specify a role

diff --git a/xml/constraints-1.1.rng b/xml/constraints-1.1.rng
index e224600..425b54c 100644
--- a/xml/constraints-1.1.rng
+++ b/xml/constraints-1.1.rng
@@ -20,13 +20,13 @@
     <element name="rsc_location">
       <attribute name="id"><data type="ID"/></attribute>
       <attribute name="rsc"><data type="IDREF"/></attribute>
+      <optional>
+	<attribute name="role">
+	  <ref name="attribute-roles"/>
+	</attribute>
+      </optional>
       <choice>
 	<group>
-	  <optional>
-	    <attribute name="role">
-	      <ref name="attribute-roles"/>
-	    </attribute>
-	  </optional>
 	  <choice>
 	    <attribute name="domain"><data type="IDREF"/></attribute>
 	    <group>
diff --git a/xml/constraints-1.2.rng b/xml/constraints-1.2.rng
index f3af61f..221140c 100644
--- a/xml/constraints-1.2.rng
+++ b/xml/constraints-1.2.rng
@@ -20,6 +20,11 @@
     <element name="rsc_location">
       <attribute name="id"><data type="ID"/></attribute>
       <attribute name="rsc"><data type="IDREF"/></attribute>
+      <optional>
+	<attribute name="role">
+	  <ref name="attribute-roles"/>
+	</attribute>
+      </optional>
       <choice>
 	<group>
 	  <externalRef href="score.rng"/>