cli CustomObject created on v61 can't be retrieved with source tracking

Summary

Creating a new CustomObject in Summer'24 (v61) in a source tracked environment (scratch org) can't be retrieved with sf project retrieve start

Steps To Reproduce

Create a new scratch org with Summer'24 ("release": "preview")
Create a new custom object in the Salesforce Setup
run command sf project retrieve preview -> will display all changes including the CustomObject
run command sf project retrieve start -> will fail to retrieve the CustomObject

NOTE: the "Fullname" of the CustomObject is lacking of __c hence the error in the retrieval see screenshot below

IMPORTANT https://github.com/ChristianMenzinger/v61CustomObjectIssue

NOTE: empty project which only contains Layout and Profiles, which have been successfully retrieved

Expected result

CustomObject is also retrieved by CLI

Actual result

CLI throws an error Entity of type 'CustomObject' named 'TestObject1' cannot be found

System Information

zsh 5.9 (x86_64-apple-darwin23.0)

{
  "architecture": "darwin-arm64",
  "cliVersion": "@salesforce/cli/2.40.7",
  "nodeVersion": "node-v20.12.2",
  "osVersion": "Darwin 23.4.0",
  "rootPath": "/Users/christianmenzinger/.local/share/sf/client/2.40.7-bde121f",
  "shell": "zsh",
  "pluginVersions": [
    "@oclif/plugin-autocomplete 3.0.16 (core)",
    "@oclif/plugin-commands 3.3.1 (core)",
    "@oclif/plugin-help 6.0.21 (core)",
    "@oclif/plugin-not-found 3.1.7 (core)",
    "@oclif/plugin-plugins 5.0.18 (core)",
    "@oclif/plugin-search 1.0.23 (core)",
    "@oclif/plugin-update 4.2.9 (core)",
    "@oclif/plugin-version 2.0.17 (core)",
    "@oclif/plugin-warn-if-update-available 3.0.16 (core)",
    "@oclif/plugin-which 3.1.8 (core)",
    "@salesforce/cli 2.40.7 (core)",
    "apex 3.1.11 (core)",
    "auth 3.6.5 (core)",
    "data 3.3.2 (core)",
    "deploy-retrieve 3.6.8 (core)",
    "info 3.2.4 (core)",
    "limits 3.3.4 (core)",
    "marketplace 1.2.4 (core)",
    "org 4.1.5 (core)",
    "packaging 1.26.4 (user)",
    "schema 3.3.4 (core)",
    "settings 2.2.3 (core)",
    "sobject 1.3.6 (core)",
    "source 3.3.5 (core)",
    "telemetry 3.3.4 (core)",
    "templates 56.2.4 (core)",
    "trust 3.6.7 (core)",
    "user 3.5.4 (core)"
  ]
}

Additional information

May 14 '24 13:05 ChristianMenzinger

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