bug(mat-menu): Nested menu stays open when mouse is quickly moved to the parent menu-item after click

[CelSzabi]

Is this a regression?

• Yes, this behavior used to work in the previous version

The previous version in which this bug was not present was

No response

Description

When a nested menu is opened and the user clicks on a sub menu element and then quickly moves the cursor to the parent element, the sub menu will stay open.

Reproduction

Steps to reproduce:

1. Go to https://material.angular.dev/components/menu/examples
2. Open the nested menu example and open "Invertebrates" menu
3. Click on "Insects" and immediately move the cursor back over "Invertebrates"

menu_issue.mp4

Expected Behavior

When parent menu closes, child menu also closes

Actual Behavior

Parent menu closes, but child menu stays open

Environment

• Angular: v20.2.5
• CDK/Material: v20.2.5
• Browser(s): Chrome Version 140.0.7339.186
• Operating System (e.g. Windows, macOS, Ubuntu): Windows 10