$ git clone -n https://src.fedoraproject.org/rpms/rust-config.git /var/lib/mock/f39-build-1564637-37512/root/chroot_tmpdir/scmroot/rust-config
Cloning into '/var/lib/mock/f39-build-1564637-37512/root/chroot_tmpdir/scmroot/rust-config'...
$ git fetch origin 358ab2efd266f6a24045406d041aab474c8eb266:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-config
 * [new ref]         358ab2efd266f6a24045406d041aab474c8eb266 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 358ab2e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild