$ git clone -n https://src.fedoraproject.org/rpms/perl-Mail-Alias.git /var/lib/mock/f39-build-1436676-32084/root/chroot_tmpdir/scmroot/perl-Mail-Alias
Cloning into '/var/lib/mock/f39-build-1436676-32084/root/chroot_tmpdir/scmroot/perl-Mail-Alias'...
$ git fetch origin df3b4ea2fc9d64a0c0cab7b6eedf3a6aff7d8d76:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mail-Alias
 * [new ref]         df3b4ea2fc9d64a0c0cab7b6eedf3a6aff7d8d76 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df3b4ea Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild