fix: feature_flag_called after reloadFeatureFlags

PostHog/PostHogSDK.swift

@@ -791,7 +791,10 @@ let maxRetryDelay = 30.0
             distinctId: storageManager.getDistinctId(),
             anonymousId: storageManager.getAnonymousId(),
             groups: groups ?? [:],
-            callback: callback
+            callback: {
+                self.flagCallReported.removeAll()
+                callback()
+            }
         )
     }
 

PostHogTests/PostHogSDKTest.swift

@@ -847,6 +847,38 @@ class PostHogSDKTest: QuickSpec {
             sut.reset()
             sut.close()
         }
+
+        it("captures $feature_flag_called when feature flag is called") {
+            let sut = self.getSut(sendFeatureFlagEvent: true)
+            let group = DispatchGroup()
+            group.enter()
+
+            _ = sut.getFeatureFlag("some_key")
+
+            let event = getBatchedEvents(server)
+            expect(event.first!.event).to(equal("$feature_flag_called"))
+        }
+
+        it("captures a second $feature_flag_called when feature flag is called after flags are reloaded") {
+            let sut = self.getSut(sendFeatureFlagEvent: true)
+            _ = sut.getFeatureFlag("some_key")
+
+            let event = getBatchedEvents(server)
+            expect(event.first!.event).to(equal("$feature_flag_called"))
+
+            server.start()
+
+            let group = DispatchGroup()
+
+            sut.reloadFeatureFlags {
+                _ = sut.getFeatureFlag("some_key")
+                sut.flush()
+            }
+
+            let secondEvent = getBatchedEvents(server)
+
+            expect(secondEvent.first!.event).to(equal("$feature_flag_called"))
+        }
     }
 }