[ML] Clear Kibana index pattern cache on creation or form reset. (#62184

)

Clears the Kibana index pattern cache ...
- when reopening the "Create Analytics job" flyout
- after creating a transform or analyticsjob (this fixes moving from transforms to discover after creating a transform)

x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_management/hooks/use_create_analytics_form/use_create_analytics_form.ts

@@ -138,6 +138,8 @@ export const useCreateAnalyticsForm = (): CreateAnalyticsFormProps => {
 
       const id = await newIndexPattern.create();
 
+      await mlContext.indexPatterns.clearCache();
+
       // id returns false if there's a duplicate index pattern.
       if (id === false) {
         addRequestMessage({
@@ -248,6 +250,7 @@ export const useCreateAnalyticsForm = (): CreateAnalyticsFormProps => {
   };
 
   const openModal = async () => {
+    await mlContext.indexPatterns.clearCache();
     resetForm();
     await prepareFormValidation();
     dispatch({ type: ACTION.OPEN_MODAL });

x-pack/plugins/ml/public/application/datavisualizer/file_based/components/import_view/import_view.js

@@ -610,6 +610,8 @@ async function createKibanaIndexPattern(
 
     const id = await emptyPattern.create();
 
+    await indexPatterns.clearCache();
+
     // check if there's a default index pattern, if not,
     // set the newly created one as the default index pattern.
     if (!kibanaConfig.get('defaultIndex')) {

x-pack/plugins/transform/public/app/sections/create_transform/components/step_create/step_create_form.tsx

@@ -185,6 +185,8 @@ export const StepCreateForm: FC<Props> = React.memo(
 
         const id = await newIndexPattern.create();
 
+        await indexPatterns.clearCache();
+
         // id returns false if there's a duplicate index pattern.
         if (id === false) {
           toastNotifications.addDanger(