$ git clone -n https://src.fedoraproject.org/rpms/perl-Mail-Transport-Dbx.git /var/lib/mock/f40-build-2626503-65281/root/chroot_tmpdir/scmroot/perl-Mail-Transport-Dbx
Cloning into '/var/lib/mock/f40-build-2626503-65281/root/chroot_tmpdir/scmroot/perl-Mail-Transport-Dbx'...
$ git fetch origin 6817ad12a479f5b779c294238882d4b69214f971:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mail-Transport-Dbx
 * [new ref]         6817ad12a479f5b779c294238882d4b69214f971 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6817ad1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild