fix(cdk/collections): SelectionModel setSelection method inconsistent with compareWith

Fix bug in SelectionModel where compareWith function
was not consistently respected in setSelection method.

Fixes #27425

Author: iladovi

src/cdk/collections/selection-model.ts

@@ -91,7 +91,7 @@ export class SelectionModel<T> {
   setSelection(...values: T[]): boolean | void {
     this._verifyValueAssignment(values);
     const oldValues = this.selected;
-    const newSelectedSet = new Set(values);
+    const newSelectedSet = new Set(values.map(value=>this._getConcreteValue(value)));
     values.forEach(value => this._markSelected(value));
     oldValues
       .filter(value => !newSelectedSet.has(value))

src/cdk/collections/selection.spec.ts

@@ -299,4 +299,15 @@ describe('SelectionModel', () => {
     model.deselect(v2);
     expect(model.selected.length).toBe(1);
   });
+
+  it('should not empty selection when caling setSelection twice with comparable', () => {
+    type Item = {id: number};
+    const compareFn = (x: Item, y: Item) => x.id === y.id;
+    const model = new SelectionModel<Item>(false, [], false, compareFn);
+    model.setSelection({id: 1});
+    expect(model.selected).toEqual([{id: 1}]);
+
+    model.setSelection({id: 1});
+    expect(model.selected).toEqual([{id: 1}]);
+  });
 });