[Bug]: Generated Aria snapshots can fail in some circumstances because they are not deep equal

[lukpsaxo]

Version

1.59

Steps to reproduce

1. clone repo: https://github.com/lukpsaxo/pw-snapshot-repro
2. install playwright - npm install
3. run npx playwright test --update-snapshots

This creates a empty snapshot that cannot be applied

4. run npx playwright test

Tests fail.

Note that deleting and regenerating from scratch generates the same snapshot that fails.

Note 2 - The bug is more visible with the new children: 'deep-equal' option as without it the generated snapshot will pass. If I add a manual children: deep-equal then the generated snapshot just removes the children deep-equal line

Expected behavior

I expect the generated snapshot to pass.

Actual behavior

the test fails with a generated snapshot

Additional context

this specific html fails

Environment

System:
    OS: Linux 5.15 Ubuntu 24.04.4 LTS 24.04.4 LTS (Noble Numbat)
    CPU: (32) x64 Intel(R) Core(TM) i9-14900
    Memory: 40.90 GB / 62.64 GB
    Container: Yes
  Binaries:
    Node: 22.14.0 - /home/dev/.nvm/versions/node/v22.14.0/bin/node
    Yarn: 1.22.22 - /mnt/c/npm/prefix/yarn
    npm: 10.9.2 - /home/dev/.nvm/versions/node/v22.14.0/bin/npm
  IDEs:
    VSCode: 1.114.0 - /home/dev/.vscode-server/bin/e7fb5e96c0730b9deb70b33781f98e2f35975036/bin/remote-cli/code
    opencode: 1.2.27 - /usr/bin/opencode
  Languages:
    Bash: 5.2.21 - /usr/bin/bash
  npmPackages:
    @playwright/test: 1.59.1 => 1.59.1