[FIX] borders: Recompute borders on SET_BORDERS_ON_TARGET

The new command, notably used in the clipboard paste and autofill, was
not added to the subset of commands that invalidate the computed border
style.

closes #6947

Task: 5024825
Signed-off-by: Lucas Lefèvre (lul) <lul@odoo.com>

Author: rrahir

src/types/commands.ts

@@ -174,6 +174,7 @@ export const invalidateBordersCommands = new Set<CommandTypes>([
   "AUTOFILL_CELL",
   "SET_BORDER",
   "SET_ZONE_BORDERS",
+  "SET_BORDERS_ON_TARGET",
 ]);
 
 export const readonlyAllowedCommands = new Set<CommandTypes>([

tests/borders/border_plugin.test.ts

@@ -921,4 +921,12 @@ describe("Computed borders", () => {
     setZoneBorders(model, { position: "all" }, ["A1"]);
     expect(getComputedBorder(model, "A1")).not.toBeNull();
   });
+
+  test("SET_BORDERS_ON_TARGET command recomputes the borders", () => {
+    const model = new Model();
+    const border = { top: DEFAULT_BORDER_DESC };
+    expect(getComputedBorder(model, "A1")).toBeNull();
+    setBordersOnTarget(model, ["A1"], border);
+    expect(getComputedBorder(model, "A1")).not.toBeNull();
+  });
 });