$ git clone -n https://src.fedoraproject.org/rpms/rust-pem-rfc7468.git /var/lib/mock/f40-build-2326500-58834/root/chroot_tmpdir/scmroot/rust-pem-rfc7468
Cloning into '/var/lib/mock/f40-build-2326500-58834/root/chroot_tmpdir/scmroot/rust-pem-rfc7468'...
$ git fetch origin ca326ed644255febbc4427318f80d04efa5f201e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pem-rfc7468
 * [new ref]         ca326ed644255febbc4427318f80d04efa5f201e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca326ed Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild