$ git clone -n https://src.fedoraproject.org/rpms/elementary-mail.git /var/lib/mock/f40-build-788322-135103/root/chroot_tmpdir/scmroot/elementary-mail
Cloning into '/var/lib/mock/f40-build-788322-135103/root/chroot_tmpdir/scmroot/elementary-mail'...
$ git fetch origin 71ae26efe2e8e143da0a2df89c00ce546305ab23:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/elementary-mail
 * [new ref]         71ae26efe2e8e143da0a2df89c00ce546305ab23 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71ae26e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild