$ git clone -n https://src.fedoraproject.org/rpms/rust-tempfile.git /var/lib/mock/f40-build-2326091-58825/root/chroot_tmpdir/scmroot/rust-tempfile
Cloning into '/var/lib/mock/f40-build-2326091-58825/root/chroot_tmpdir/scmroot/rust-tempfile'...
$ git fetch origin fd98900904dfc9234e4f1b320303dffb6c13e6b2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tempfile
 * [new ref]         fd98900904dfc9234e4f1b320303dffb6c13e6b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd98900 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild