$ git clone -n https://src.fedoraproject.org/rpms/rust-ybaas.git /var/lib/mock/f41-build-810601-146818/root/chroot_tmpdir/scmroot/rust-ybaas
Cloning into '/var/lib/mock/f41-build-810601-146818/root/chroot_tmpdir/scmroot/rust-ybaas'...
$ git fetch origin b9643528901b92f4763cbdc6cde4426af4d88107:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ybaas
 * [new ref]         b9643528901b92f4763cbdc6cde4426af4d88107 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b964352 Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces