$ git clone -n https://src.fedoraproject.org/rpms/perl-Net-DNS-Resolver-Mock.git /var/lib/mock/f45-build-25253-610/root/chroot_tmpdir/scmroot/perl-Net-DNS-Resolver-Mock
Cloning into '/var/lib/mock/f45-build-25253-610/root/chroot_tmpdir/scmroot/perl-Net-DNS-Resolver-Mock'...
$ git fetch origin a6ecce22c19cc071cc5d16c179f2e205c3949f25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Net-DNS-Resolver-Mock
 * [new ref]         a6ecce22c19cc071cc5d16c179f2e205c3949f25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a6ecce2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild