Fix access for site administrators

They didn't have ownership over refs/* in any project, unless it
was otherwise somehow already granted to them through an OWN rule.

Change-Id: I59240a6fa6f1506f6c006c8c6b6b0ed1991c5439
Signed-off-by: Shawn O. Pearce <sop@google.com>

gerrit-server/src/main/java/com/google/gerrit/server/project/RefControl.java

@@ -109,13 +109,12 @@ public class RefControl {
     // calls us to find out if there is ownership of all references in
     // order to determine project level ownership.
     //
-    if (!getRefName().equals(
-        RefRight.ALL.substring(0, RefRight.ALL.length() - 1))
-        && getProjectControl().isOwner()) {
-      return true;
+    if (getRefName().equals(
+        RefRight.ALL.substring(0, RefRight.ALL.length() - 1))) {
+      return getCurrentUser().isAdministrator();
+    } else {
+      return getProjectControl().isOwner();
     }
-
-    return false;
   }
 
   /** Can this user see this reference exists? */