Fix coverage attributes on bibliocoverage

diff --git a/docbook/relaxng/src/pool.rnc b/docbook/relaxng/src/pool.rnc
index 66b6eb758c94c6bbf2f9fef490f99b7a3b7a0a58..2cb7a542d472486ce571e211ca4927cf697027f8 100644 (file)
--- a/docbook/relaxng/src/pool.rnc
+++ b/docbook/relaxng/src/pool.rnc
@@ -4361,7 +4361,7 @@ div {
    bibliocoverage.spatial-enum.attribute =
       attribute spatial {
          "dcmipoint" | "iso3166" | "dcmibox" | "tgn"
-      }
+      }?
 
    bibliocoverage.spatial-other.attributes =
       attribute spatial { "otherspatial" }?,
@@ -4377,7 +4377,7 @@ div {
    bibliocoverage.temporal-enum.attribute =
       attribute temporal {
          "dcmiperiod" | "w3c-dtf"
-      }
+      }?
 
    bibliocoverage.temporal-other.attributes =
       attribute temporal { "othertemporal" }?,
@@ -4387,8 +4387,7 @@ div {
       (bibliocoverage.temporal-enum.attribute | bibliocoverage.temporal-other.attributes)
 
    bibliocoverage.coverage.attrib =
-      (bibliocoverage.spatial.attrs | bibliocoverage.temporal.attrs)
-    | (bibliocoverage.spatial.attrs & bibliocoverage.temporal.attrs)
+      bibliocoverage.spatial.attrs & bibliocoverage.temporal.attrs
 
    bibliocoverage.role.attribute = attribute role { text }