[Lens][ES|QL] Do not refetch the attributes if the query hasn't chang…

…ed (#195196)

## Summary

When a user is creating a Lens ES|QL chart we run the suggestions api
even if the query hasn't changed. This PR adds a guard to avoid
refetching the attributes when the query hasn't changed at all.

x-pack/plugins/lens/public/app_plugin/shared/edit_on_the_fly/lens_configuration_flyout.tsx

@@ -337,6 +337,7 @@ export function LensEditConfigurationFlyout({
         setErrors([]);
         updateSuggestion?.(attrs);
       }
+      prevQuery.current = q;
       setIsVisualizationLoading(false);
     },
     [
@@ -481,7 +482,6 @@ export function LensEditConfigurationFlyout({
                 query={query}
                 onTextLangQueryChange={(q) => {
                   setQuery(q);
-                  prevQuery.current = q;
                 }}
                 detectedTimestamp={adHocDataViews?.[0]?.timeFieldName}
                 hideTimeFilterInfo={hideTimeFilterInfo}
@@ -497,7 +497,8 @@ export function LensEditConfigurationFlyout({
                 editorIsInline
                 hideRunQueryText
                 onTextLangQuerySubmit={async (q, a) => {
-                  if (q) {
+                  // do not run the suggestions if the query is the same as the previous one
+                  if (q && !isEqual(q, prevQuery.current)) {
                     setIsVisualizationLoading(true);
                     await runQuery(q, a);
                   }