Fix issue with HMR and register the same predicate-less component again

packages/registry/news/5832.bugfix

@@ -0,0 +1 @@
+Fix issue with HMR and register the same predicate-less component again @sneridagh

packages/registry/src/index.ts

@@ -249,7 +249,10 @@ class Config {
       const hasRegisteredNoPredicatesComponent = this._data.slots?.[
         slot
       ]?.data?.[name]?.find(({ predicates }) => !predicates);
-      if (hasRegisteredNoPredicatesComponent) {
+      if (
+        hasRegisteredNoPredicatesComponent &&
+        component !== hasRegisteredNoPredicatesComponent.component
+      ) {
         throw new Error(
           `There is already registered a component ${name} for the slot ${slot}. You can only register one slot component with no predicates per slot.`,
         );

packages/registry/src/registry.test.tsx

@@ -733,4 +733,21 @@ describe('Slots registry', () => {
     config.unRegisterSlotComponent('toolbar', 'save', 1);
     expect(config.getSlotComponent('toolbar', 'save').length).toEqual(1);
   });
+
+  // The next one fixes the issue when HMR kicks in and tries to register the same component again
+  it('registerSlotComponent - registers the same named slot component twice, does not break', () => {
+    const TestComponent = () => <div>Hello</div>;
+
+    config.registerSlotComponent({
+      slot: 'toolbar',
+      name: 'save',
+      component: TestComponent,
+    });
+
+    config.registerSlotComponent({
+      slot: 'toolbar',
+      name: 'save',
+      component: TestComponent,
+    });
+  });
 });