$ git clone -n https://src.fedoraproject.org/rpms/rust-afterburn.git /var/lib/mock/f41-build-811102-147141/root/chroot_tmpdir/scmroot/rust-afterburn
Cloning into '/var/lib/mock/f41-build-811102-147141/root/chroot_tmpdir/scmroot/rust-afterburn'...
$ git fetch origin c4c26c02b12340ab079fd09342d1cae6001e0d68:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-afterburn
 * [new ref]         c4c26c02b12340ab079fd09342d1cae6001e0d68 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c4c26c0 Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces