XWIKI-11750: Cannot configure rights for the members of a subwiki until the...

XWIKI-11750: Cannot configure rights for the members of a subwiki until the first member is added to the wiki.

* Add missing annotations.
* Fixing the conflict that occurs during the installation of XWiki on an empty database.

xwiki-platform-core/xwiki-platform-oldcore/src/main/java/com/xpn/xwiki/internal/mandatory/XWikiAllGroupDocumentInitializer.java

@@ -20,9 +20,12 @@
 package com.xpn.xwiki.internal.mandatory;
 
 import javax.inject.Inject;
+import javax.inject.Named;
 import javax.inject.Provider;
+import javax.inject.Singleton;
 
 import org.slf4j.Logger;
+import org.xwiki.component.annotation.Component;
 import org.xwiki.model.reference.DocumentReference;
 import org.xwiki.model.reference.EntityReference;
 import org.xwiki.model.reference.LocalDocumentReference;
@@ -41,6 +44,9 @@
  * @version $Id$
  * @since 6.4.2 
  */
+@Component
+@Singleton
+@Named("XWiki.XWikiAllGroup")
 public class XWikiAllGroupDocumentInitializer implements MandatoryDocumentInitializer
 {
     private static final String DOCUMENT_NAME = "XWikiAllGroup";