$ git clone -n https://src.fedoraproject.org/rpms/rust-vm-fdt.git /var/lib/mock/f40-build-2040642-48371/root/chroot_tmpdir/scmroot/rust-vm-fdt
Cloning into '/var/lib/mock/f40-build-2040642-48371/root/chroot_tmpdir/scmroot/rust-vm-fdt'...
$ git fetch origin eb6c8dcec570465adadcf0273bdf39f38b935196:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-vm-fdt
 * [new ref]         eb6c8dcec570465adadcf0273bdf39f38b935196 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb6c8dc Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild