version updated to 5.2.0.M3

Change-Id: I89b29d6c3c3ce97bde41e2e86373e86828b96724
diff --git a/org.eclipse.scout.rt/pom.xml b/org.eclipse.scout.rt/pom.xml
index c063336..aa64d7b 100644
--- a/org.eclipse.scout.rt/pom.xml
+++ b/org.eclipse.scout.rt/pom.xml
@@ -404,7 +404,7 @@
   <scm>
     <connection>scm:git:git://git.eclipse.org/gitroot/scout/org.eclipse.scout.rt.git</connection>
     <developerConnection>scm:git:ssh://${eclipse_gerrit_username}@git.eclipse.org:29418/scout/org.eclipse.scout.rt</developerConnection>
-    <tag>M3</tag>
+    <tag>5.2.0.M3_2</tag>
     <url>http://git.eclipse.org/c/scout/org.eclipse.scout.rt.git/</url>
   </scm>