Mark change schema version V46 as deprecated

Change Icfcb34efe1 added a new change schema version and forgot to
mark the old schema version as deprecated.

Change-Id: I006b03ab3ecb4782236dc2440881b3012d44d1bc
Signed-off-by: Edwin Kempin <ekempin@google.com>
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/index/change/ChangeSchemaDefinitions.java b/gerrit-server/src/main/java/com/google/gerrit/server/index/change/ChangeSchemaDefinitions.java
index 144ec1d..c103c89 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/index/change/ChangeSchemaDefinitions.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/index/change/ChangeSchemaDefinitions.java
@@ -88,7 +88,7 @@
 
   @Deprecated static final Schema<ChangeData> V45 = schema(V44, ChangeField.REVERT_OF);
 
-  static final Schema<ChangeData> V46 = schema(V45);
+  @Deprecated static final Schema<ChangeData> V46 = schema(V45);
 
   // Removal of draft change workflow requires reindexing
   static final Schema<ChangeData> V47 = schema(V46);