Optimistic rendering of morph relations (#14997)

The optimistic rendering of a morph relation Is broken. We intend to fix
it here.

- mapping of gql fields


Fixes https://github.com/twentyhq/core-team-issues/issues/1322

---------

Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-front/src/modules/object-metadata/utils/mapFieldMetadataToGraphQLQuery.ts

@@ -107,7 +107,7 @@ export const mapFieldMetadataToGraphQLQuery = ({
       }
 
       if (fieldMetadata.settings?.relationType === RelationType.MANY_TO_ONE) {
-        if (gqlField === fieldMetadata.settings?.joinColumnName) {
+        if (gqlField === `${relationFieldName}Id`) {
           gqlMorphField += `${gqlField}
     `;
           continue;