$ git clone -n https://src.fedoraproject.org/rpms/perl-Pod-Weaver.git /var/lib/mock/f45-build-25921-613/root/chroot_tmpdir/scmroot/perl-Pod-Weaver
Cloning into '/var/lib/mock/f45-build-25921-613/root/chroot_tmpdir/scmroot/perl-Pod-Weaver'...
$ git fetch origin 851a76a960b5a17d7e98642d2e2fbb8acbae0104:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Pod-Weaver
 * [new ref]         851a76a960b5a17d7e98642d2e2fbb8acbae0104 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 851a76a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild