$ git clone -n https://src.fedoraproject.org/rpms/rust-copydeps.git /var/lib/mock/f40-build-2659603-66918/root/chroot_tmpdir/scmroot/rust-copydeps
Cloning into '/var/lib/mock/f40-build-2659603-66918/root/chroot_tmpdir/scmroot/rust-copydeps'...
$ git fetch origin 39c5995330a00b429eee535745b30faaadf5f68e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-copydeps
 * [new ref]         39c5995330a00b429eee535745b30faaadf5f68e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39c5995 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild