When attempting to clone a repository hosted on a GitHub Enterprise instance using SourceTree (HTTPS), the repository URL is not recognized as a valid source path / URL.

SourceTree reports that the URL is invalid, and the clone operation fails. In the Details view, the underlying Git command (git ls-remote) fails due to an HTTP redirect to an authentication (SAML/MFA) endpoint.

This redirect seems to be handled correctly by Git CLI, but not by SourceTree.

Steps to Reproduce

1. Open SourceTree

1. Select Clone

1. Paste a GitHub Enterprise repository URL (HTTPS)

1. Attempt to clone the repository

Actual Result

• SourceTree reports that the URL is not a valid source path / URL

• Clone operation fails

• Details show an error similar to:
   
  {{fatal: unable to update url base from redirection
  asked for: .../info/refs?service=git-upload-pack
  redirect: https://idp.cloud.vwgroup.com/auth/realms/...}}

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Expected Result

• SourceTree should be able to handle the authentication redirect (as Git CLI does)

• Repository should clone successfully after authentication

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Additional Information / Observations

• The same repository URL works correctly when cloning via Git Bash (CLI)

• Authentication and permissions are valid

• Issue occurs only in SourceTree UI

• Multiple URL formats were tested, with the same result

• Screenshots attached showing the error and full Git command output

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Environment

• OS: Windows

• SourceTree version: 3.4.27

• Git hosting: GitHub Enterprise

• Protocol: HTTPS