Failure store: Add backport path from 8.18 (elastic#123018)

Author: gmarouli

server/src/main/java/org/elasticsearch/TransportVersions.java

@@ -180,9 +180,10 @@ static TransportVersion def(int id) {
     public static final TransportVersion TIMEOUT_GET_PARAM_FOR_RESOLVE_CLUSTER = def(8_838_0_00);
     public static final TransportVersion INFERENCE_REQUEST_ADAPTIVE_RATE_LIMITING = def(8_839_0_00);
     public static final TransportVersion ML_INFERENCE_IBM_WATSONX_RERANK_ADDED = def(8_840_0_00);
+    public static final TransportVersion REMOVE_ALL_APPLICABLE_SELECTOR_BACKPORT_8_18 = def(8_840_0_01);
     public static final TransportVersion INITIAL_ELASTICSEARCH_8_19 = def(8_841_0_00);
     public static final TransportVersion COHERE_BIT_EMBEDDING_TYPE_SUPPORT_ADDED_BACKPORT_8_X = def(8_841_0_01);
-    public static final TransportVersion REMOVE_ALL_APPLICABLE_SELECTOR_BACKPORT_8_X = def(8_841_0_02);
+    public static final TransportVersion REMOVE_ALL_APPLICABLE_SELECTOR_BACKPORT_8_19 = def(8_841_0_02);
     public static final TransportVersion ESQL_RETRY_ON_SHARD_LEVEL_FAILURE_BACKPORT_8_19 = def(8_841_0_03);
     public static final TransportVersion ESQL_SUPPORT_PARTIAL_RESULTS_BACKPORT_8_19 = def(8_841_0_04);
 

server/src/main/java/org/elasticsearch/action/support/IndexComponentSelector.java

@@ -74,7 +74,8 @@ public static IndexComponentSelector getByKey(String key) {
 
     public static IndexComponentSelector read(StreamInput in) throws IOException {
         byte id = in.readByte();
-        if (in.getTransportVersion().onOrAfter(TransportVersions.REMOVE_ALL_APPLICABLE_SELECTOR_BACKPORT_8_X)) {
+        if (in.getTransportVersion().onOrAfter(TransportVersions.REMOVE_ALL_APPLICABLE_SELECTOR_BACKPORT_8_19)
+            || in.getTransportVersion().isPatchFrom(TransportVersions.REMOVE_ALL_APPLICABLE_SELECTOR_BACKPORT_8_18)) {
             return getById(id);
         } else {
             // Legacy value ::*, converted to ::data