MPPLUGIN-26 plugin:download doesn't redownload SNAPSHOT plugins

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@291981 13f79535-47bb-0310-9956-ffa450edef68

plugin/plugin.jelly

@@ -434,11 +434,10 @@ Try: maven plugin:download -DgroupId=maven -DartifactId=${pluginToTest} -Dversio
     
     <u:file var="localPluginFile" 
       name="${maven.repo.local}/${groupId}/plugins/${artifactId}-${version}.jar" />        
-    <j:if test="${!localPluginFile.exists()}">
+    <j:if test="${(!localPluginFile.exists()) or (localPluginFile.name.indexOf('SNAPSHOT') != '-1')}">
       <ant:mkdir dir="${maven.repo.local}/${groupId}/plugins" />
       <j:set var="repoList">${maven.repo.remote}</j:set>
       <u:tokenize var="repos" delim=",">${repoList.trim()}</u:tokenize>
-    
       <j:forEach var="repo" items="${repos}">
         <echo>repo is '${repo}'</echo>
         <j:set var="remoteFile"
@@ -458,7 +457,7 @@ Try: maven plugin:download -DgroupId=maven -DartifactId=${pluginToTest} -Dversio
             <j:arg type="boolean" value="false"/>
           </j:invokeStatic>
         </j:catch>
-        <j:break test="${localPluginFile.exists()}"/>
+        <j:break test="${localPluginFile.exists() and (localPluginFile.name.indexOf('SNAPSHOT') == '-1')}"/>
       </j:forEach>
     </j:if>