fix(openfeature): preserve source configuration identity

Author: leoromanovsky

packages/dd-trace/src/openfeature/ffe-evaluator.js

@@ -18,6 +18,7 @@ const UINT64_MAX = '18446744073709551615'
  * @returns {{
  *   configuration: import('@datadog/openfeature-node-server').UniversalFlagConfigurationV1 | undefined,
  *   rejected: Set<string>,
+ *   sourceConfiguration: import('@datadog/openfeature-node-server').UniversalFlagConfigurationV1 | undefined,
  *   semverConditions: Map<string, Array<{
  *     attribute: string,
  *     comparand: string,
@@ -30,7 +31,7 @@ function sanitizeConfiguration (configuration) {
   const rejected = new Set()
   const semverConditions = new Map()
   if (!configuration?.flags || typeof configuration.flags !== 'object' || Array.isArray(configuration.flags)) {
-    return { configuration, rejected, semverConditions }
+    return { configuration, rejected, semverConditions, sourceConfiguration: configuration }
   }
 
   const flags = { ...configuration.flags }
@@ -48,6 +49,7 @@ function sanitizeConfiguration (configuration) {
     configuration: rejected.size || semverConditions.size ? { ...configuration, flags } : configuration,
     rejected,
     semverConditions,
+    sourceConfiguration: configuration,
   }
 }
 

packages/dd-trace/src/openfeature/flagging_provider.js

@@ -69,6 +69,15 @@ class FlaggingProvider extends DatadogNodeServerProvider {
     this.#ffeState = state
   }
 
+  /**
+   * Returns the exact source configuration supplied to the provider.
+   *
+   * @returns {import('@datadog/openfeature-node-server').UniversalFlagConfigurationV1 | undefined}
+   */
+  getConfiguration () {
+    return this.#ffeState.sourceConfiguration
+  }
+
   /**
    * Resolves a boolean flag and normalizes its canonical result.
    *