$ git clone -n https://src.fedoraproject.org/rpms/rust-weezl.git /var/lib/mock/f41-build-810600-146814/root/chroot_tmpdir/scmroot/rust-weezl
Cloning into '/var/lib/mock/f41-build-810600-146814/root/chroot_tmpdir/scmroot/rust-weezl'...
$ git fetch origin ce2d2422ed656b358a9232f293ddedba33b21ad9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-weezl
 * [new ref]         ce2d2422ed656b358a9232f293ddedba33b21ad9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce2d242 Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces