Revert "Internal: Change version constant names for already released versions (#23416)"

This reverts commit dc0e93ed6238e5df6c66206b9f31cdc162db166a.

1 files changed, 1 insertions, 1 deletions

diff --git a/core/src/test/java/org/elasticsearch/action/admin/indices/mapping/put/PutMappingRequestTests.java b/core/src/test/java/org/elasticsearch/action/admin/indices/mapping/put/PutMappingRequestTests.java
index 5a002dc70b..fd7f830e59 100644
--- a/core/src/test/java/org/elasticsearch/action/admin/indices/mapping/put/PutMappingRequestTests.java
+++ b/core/src/test/java/org/elasticsearch/action/admin/indices/mapping/put/PutMappingRequestTests.java
@@ -94,7 +94,7 @@ public class PutMappingRequestTests extends ESTestCase {
     public void testSerializationBwc() throws IOException {
         final byte[] data = Base64.getDecoder().decode("ADwDAQNmb28MAA8tLS0KZm9vOiAiYmFyIgoAPAMAAAA=");
         final Version version = randomFrom(Version.V_5_0_0, Version.V_5_0_1, Version.V_5_0_2,
-            Version.V_5_0_3_UNRELEASED, Version.V_5_1_1, Version.V_5_1_2, Version.V_5_2_0);
+            Version.V_5_0_3_UNRELEASED, Version.V_5_1_1_UNRELEASED, Version.V_5_1_2_UNRELEASED, Version.V_5_2_0_UNRELEASED);
         try (StreamInput in = StreamInput.wrap(data)) {
             in.setVersion(version);
             PutMappingRequest request = new PutMappingRequest();