$ git clone -n https://src.fedoraproject.org/rpms/maturin.git /var/lib/mock/f41-build-811420-147385/root/chroot_tmpdir/scmroot/maturin
Cloning into '/var/lib/mock/f41-build-811420-147385/root/chroot_tmpdir/scmroot/maturin'...
$ git fetch origin f39d74a1059a09875cd299a82ac7d254fb62b61c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/maturin
 * [new ref]         f39d74a1059a09875cd299a82ac7d254fb62b61c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f39d74a Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces