let omniflow accept existing initial omni params

Author: XiNiHa

.changeset/eleven-ants-build.md

@@ -0,0 +1,5 @@
+---
+"@contentstech/stackflow-plugin-omniflow": patch
+---
+
+Don't override omniflow params when initializing if there's already one

src/index.tsx

@@ -121,7 +121,10 @@ export function omniflow<ActivityName extends string>({
 				const initialParams = getOmniInitialParams(
 					topActivityEvent.activityName as ActivityName,
 				);
-				if (initialParams) {
+				if (
+					initialParams &&
+					topActivityEvent.activityParams.OMNI_childName == null
+				) {
 					topActivityEvent.activityParams = {
 						OMNI_childName: JSON.stringify(initialParams.childName),
 						OMNI_childParams: JSON.stringify(initialParams.childParams),