$ git clone -n https://src.fedoraproject.org/rpms/perl-Mail-Sender.git /var/lib/mock/f40-build-2626468-65277/root/chroot_tmpdir/scmroot/perl-Mail-Sender
Cloning into '/var/lib/mock/f40-build-2626468-65277/root/chroot_tmpdir/scmroot/perl-Mail-Sender'...
$ git fetch origin 7e08c56509f78ba1bc509669a04040377b0446c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mail-Sender
 * [new ref]         7e08c56509f78ba1bc509669a04040377b0446c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7e08c56 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild