NTLM Auth failure for version 2.55

### Existing issues matching what you're seeing - [x] I was not able to find an open or closed issue matching what I'm seeing ### Git for Windows version ```shell git version 2.55.0.windows.1 cpu: x86_64 built from commit: bf5afdecc10478397d7059d07573630902fb2e2f sizeof-long: 4 sizeof-size_t: 8 shell-path: D:/git-sdk-64-build-installers/usr/bin/sh rust: disabled feature: fsmonitor--daemon gettext: enabled libcurl: 8.21.0 OpenSSL: OpenSSL 3.5.7 9 Jun 2026 zlib: 1.3.2 SHA-1: SHA1_DC SHA-256: SHA256_BLK default-ref-format: files default-hash: sha1 ``` ### Windows version Other ### Windows CPU architecture x86_64 (64-bit) ### Additional Windows version information ```shell ``` ### Options set during installation ```shell We used the defaults ``` ### Other interesting things We are trying to authenticate to our on premise ADO repo with the url https://example.com/tfs which cause the NTLM authentication not to work ### Terminal/shell Bash ### Commands that trigger the issue ```shell git clone and git config --global http.https://example.com.allowNTLMAuth true ``` ### Expected behaviour Clone the repo locally ### Actual behaviour Get prompted for my credentials and then the authentication fails [git-auth.log](https://github.com/user-attachments/files/29553709/git-auth.log) ### Repository This is internal and not publicly shareable