Repro #21513: Custom Expression validator too strict when field name is the...

Repro #21513: Custom Expression validator too strict when field name is the same as a function (#21567)

frontend/test/metabase/scenarios/custom-column/reproductions/21513-cc-confusion-field-function.cy.spec.js

+import {
+  restore,
+  popover,
+  openProductsTable,
+  summarize,
+  enterCustomColumnDetails,
+} from "__support__/e2e/cypress";
+
+describe.skip("issue 21513", () => {
+  beforeEach(() => {
+    restore();
+    cy.signInAsAdmin();
+  });
+
+  it("should handle cc with the same name as an aggregation function (metabase#21513)", () => {
+    openProductsTable({ mode: "notebook" });
+    summarize({ mode: "notebook" });
+    popover()
+      .findByText("Count of rows")
+      .click();
+
+    cy.findByText("Pick a column to group by").click();
+    popover()
+      .findByText("Category")
+      .click();
+
+    cy.findByText("Custom column").click();
+    enterCustomColumnDetails({
+      formula: "[Count] * 2",
+      name: "Double Count",
+    });
+    cy.button("Done").should("not.be.disabled");
+  });
+});