CDK Drag Drop issues with nested lists - On Drop cannot reconize child list

[guilhermebentomarques]

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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

Hi all, I'm facing an issue and I can't drag and drop correctly when I have nested lists.

The link to understand issue is here: https://stackblitz.com/edit/angular-cdk-drag-drop-vrgtqh?file=app/cdk-drag-drop-connected-example.html

Is there anything to do in this case related to CDK, or it is a limitation?

Thank you all, Guilherme Marques.

Reproduction

Steps to reproduce:

1. Drag the second red square
2. Drop the second red square in the first red square zone.

The blue square (parent) is overriding the child (red square) and I cannot reach the child red square when I drop.

Expected Behavior

The console log should be: Line 1 - from red-square-2-data Line 2 - to red-square-1-data

Actual Behavior

Check the console log. Line 1 - from red-square-2-data Line 2 - to blue-square-1-data

Environment

• Angular: 12.2.16
• CDK/Material: 12.2.13
• Browser(s): All majors (Chrome, Firefox, Edge)
• Operating System (e.g. Windows, macOS, Ubuntu): Windows Ps: The stackblitz link is using an older version but the issue is the same with the version above.