Verify that schemaLocation keeps its original value
diff --git a/maven-release-plugin/src/it/projects/prepare/namespace/pom.xml b/maven-release-plugin/src/it/projects/prepare/namespace/pom.xml
new file mode 100644
index 0000000..3fee108
--- /dev/null
+++ b/maven-release-plugin/src/it/projects/prepare/namespace/pom.xml
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one
+  ~ or more contributor license agreements.  See the NOTICE file
+  ~ distributed with this work for additional information
+  ~ regarding copyright ownership.  The ASF licenses this file
+  ~ to you under the Apache License, Version 2.0 (the
+  ~ "License"); you may not use this file except in compliance
+  ~ with the License.  You may obtain a copy of the License at
+  ~
+  ~   http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing,
+  ~ software distributed under the License is distributed on an
+  ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  ~ KIND, either express or implied.  See the License for the
+  ~ specific language governing permissions and limitations
+  ~ under the License.
+  -->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>org.apache.maven.its.release</groupId>
+  <artifactId>completion-goals</artifactId>
+  <version>1.0-SNAPSHOT</version>
+  <packaging>pom</packaging>
+  
+  <description>Verify that schemaLocation keeps its original value</description>
+
+  <name>Maven Release Plugin IT</name>
+  <url>http://maven.apache.org/</url>
+
+  <scm>
+    <connection>scm:dummy|nul</connection>
+    <developerConnection>scm:dummy|nul</developerConnection>
+  </scm>
+
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-release-plugin</artifactId>
+        <version>@project.version@</version>
+        <configuration>
+          <arguments>-Dflag -Dfoo=bar</arguments>
+          <mavenExecutorId>invoker</mavenExecutorId>
+          <goals>validate</goals>
+          <preparationGoals>validate</preparationGoals>
+          <completionGoals>verify</completionGoals>
+        </configuration>
+        <dependencies>
+          <dependency>
+            <groupId>org.apache.maven.its.release</groupId>
+            <artifactId>maven-scm-provider-dummy</artifactId>
+            <version>1.0</version>
+          </dependency>
+        </dependencies>
+      </plugin>
+    </plugins>
+  </build>
+</project>
diff --git a/maven-release-plugin/src/it/projects/prepare/namespace/verify.groovy b/maven-release-plugin/src/it/projects/prepare/namespace/verify.groovy
new file mode 100644
index 0000000..da22596
--- /dev/null
+++ b/maven-release-plugin/src/it/projects/prepare/namespace/verify.groovy
@@ -0,0 +1,29 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+def project = new XmlSlurper().parse( new File( basedir, "pom.xml" ) )
+assert project['@xsi:schemaLocation'] == "http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd"
+
+def projectTag = new XmlSlurper().parse( new File( basedir, "pom.xml.tag" ) )
+assert projectTag['@xsi:schemaLocation'] == "http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd"
+
+def projectNext = new XmlSlurper().parse( new File( basedir, "pom.xml.next" ) )
+assert projectNext['@xsi:schemaLocation'] == "http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd"
+
+return true