$ git clone -n https://src.fedoraproject.org/rpms/perl-DBIx-ContextualFetch.git /var/lib/mock/f45-build-22816-594/root/chroot_tmpdir/scmroot/perl-DBIx-ContextualFetch
Cloning into '/var/lib/mock/f45-build-22816-594/root/chroot_tmpdir/scmroot/perl-DBIx-ContextualFetch'...
$ git fetch origin 1b674d4714b8f935b2a8f8239c1d12d1f32b4f37:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DBIx-ContextualFetch
 * [new ref]         1b674d4714b8f935b2a8f8239c1d12d1f32b4f37 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b674d4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild