Unable to create scratch org when having Managed Package with ancestorVersion = HIGHEST

[petter-eikeland]

Summary

Similar to #1392 & #1453. When having a Managed Package, and using ancestorVersion = HIGHEST, sf throws error that scratch org namespace must match Managed Package namespace. This blocker is not relevant for us as we mostly develop Unlocked Packages, and only use Managed Packages to store and distribute Secrets.

Steps To Reproduce

1. Have a 2GP managed package
2. Set "ancestorVersion": "HIGHEST", for the package in sfdx-project.json
3. Attempt to create a new scratch org and having "namespace": "",

IMPORTANT
Provide a repository that's configured to reproduce the issue. If you are unable to provide a repo, please explain why not. The more info we have from the start, the faster we can resolve your issue.
We may close your issue if you don't include proper instructions.

• Generate a project with sf project generate or fork dreamhouse-lwc.
• Provide detailed step-by-step instructions on how to reproduce the issue.

It was a real hassle trying to generate a new namespace and linking it to the existing Dev Org. Failed multiple times with unknown error, so I haven't linked a repo this time

Expected result

Scratch org created successfully

Actual result

Error (1): The scratch org request namespace '[NO NAMESPACE]' must match Ancestor's (04tTe12345678) parent Package2 (0336N1234566) namespace 'test'.: Requested Package2 Ancestor IDs

System Information

{
  "architecture": "darwin-arm64",
  "cliVersion": "@salesforce/cli/2.24.4",
  "nodeVersion": "node-v20.10.0",
  "osVersion": "Darwin 22.6.0",
  "rootPath": "/Users/user/.local/share/sf/client/2.24.4-c9898a2",
  "shell": "zsh",
  "pluginVersions": [
    "@oclif/plugin-autocomplete 3.0.5 (core)",
    "@oclif/plugin-commands 3.1.0 (core)",
    "@oclif/plugin-help 6.0.10 (core)",
    "@oclif/plugin-not-found 3.0.8 (core)",
    "@oclif/plugin-plugins 4.1.15 (core)",
    "@oclif/plugin-search 1.0.11 (core)",
    "@oclif/plugin-update 4.1.7 (core)",
    "@oclif/plugin-version 2.0.11 (core)",
    "@oclif/plugin-warn-if-update-available 3.0.9 (core)",
    "@oclif/plugin-which 3.0.14 (core)",
    "@salesforce/cli 2.24.4 (core)",
    "1commerce 0.0.10 (user)",
    "apex 3.0.17 (core)",
    "auth 3.2.0 (core)",
    "community 3.0.12 (user)",
    "data 3.0.14 (core)",
    "deploy-retrieve 3.1.0 (core)",
    "info 3.0.15 (core)",
    "limits 3.1.2 (core)",
    "marketplace 1.0.16 (core)",
    "org 3.2.2 (core)",
    "packaging 2.1.0 (user)",
    "schema 3.1.0 (core)",
    "settings 2.0.15 (core)",
    "signups 2.0.15 (user)",
    "sobject 1.1.0 (core)",
    "source 3.1.3 (core)",
    "telemetry 3.1.9 (core)",
    "templates 56.0.9 (core)",
    "trust 3.3.1 (core)",
    "user 3.2.1 (core)",
    "@salesforce/sfdx-plugin-lwc-test 1.1.1 (user)",
    "sfdmu 4.32.2 (user)",
    "sfdx-browserforce-plugin 4.0.0 (user)"
  ]
}

[github-actions]

Thank you for filing this issue. We appreciate your feedback and will review the issue as soon as possible. Remember, however, that GitHub isn't a mechanism for receiving support under any agreement or SLA. If you require immediate assistance, contact Salesforce Customer Support.

[petter-eikeland]

This was fixed using the -c flag in sf org create scratch -c.
Apologies for not checking through all the flags before reporting issue