$ git clone -n https://src.fedoraproject.org/rpms/rust-vm-fdt.git /var/lib/mock/f40-build-2683942-67976/root/chroot_tmpdir/scmroot/rust-vm-fdt
Cloning into '/var/lib/mock/f40-build-2683942-67976/root/chroot_tmpdir/scmroot/rust-vm-fdt'...
$ git fetch origin 686e3aaef19cd1b76d7208fc5b4a0f031feb0087:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-vm-fdt
 * [new ref]         686e3aaef19cd1b76d7208fc5b4a0f031feb0087 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 686e3aa Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild