$ git clone -n https://src.fedoraproject.org/rpms/rust-cargo-manifest.git /var/lib/mock/f39-build-1444934-32643/root/chroot_tmpdir/scmroot/rust-cargo-manifest
Cloning into '/var/lib/mock/f39-build-1444934-32643/root/chroot_tmpdir/scmroot/rust-cargo-manifest'...
$ git fetch origin 5cf0f897f5f31100de4081c56aa747ac95dc8a7b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cargo-manifest
 * [new ref]         5cf0f897f5f31100de4081c56aa747ac95dc8a7b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5cf0f89 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild