$ git clone -n https://src.fedoraproject.org/rpms/rust-pep440_rs.git /var/lib/mock/f40-build-2326506-58834/root/chroot_tmpdir/scmroot/rust-pep440_rs
Cloning into '/var/lib/mock/f40-build-2326506-58834/root/chroot_tmpdir/scmroot/rust-pep440_rs'...
$ git fetch origin f63d02ff3848793a079571cf01879ca3fd3315ee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pep440_rs
 * [new ref]         f63d02ff3848793a079571cf01879ca3fd3315ee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f63d02f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild