$ git clone -n https://src.fedoraproject.org/rpms/perl-Mail-Audit.git /var/lib/mock/f45-build-24615-605/root/chroot_tmpdir/scmroot/perl-Mail-Audit
Cloning into '/var/lib/mock/f45-build-24615-605/root/chroot_tmpdir/scmroot/perl-Mail-Audit'...
$ git fetch origin 61624e9545f067131b26c5c9e59c5e1cb5e354cf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mail-Audit
 * [new ref]         61624e9545f067131b26c5c9e59c5e1cb5e354cf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 61624e9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild