$ git clone -n https://src.fedoraproject.org/rpms/perl-SVG-TT-Graph.git /var/lib/mock/f45-build-26099-614/root/chroot_tmpdir/scmroot/perl-SVG-TT-Graph
Cloning into '/var/lib/mock/f45-build-26099-614/root/chroot_tmpdir/scmroot/perl-SVG-TT-Graph'...
$ git fetch origin 019579ba7ca2cc95fbc991ba27fab27bebfaba62:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-SVG-TT-Graph
 * [new ref]         019579ba7ca2cc95fbc991ba27fab27bebfaba62 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 019579b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild