$ git clone -n https://src.fedoraproject.org/rpms/perl-SVG-Graph.git /var/lib/mock/f45-build-26097-614/root/chroot_tmpdir/scmroot/perl-SVG-Graph
Cloning into '/var/lib/mock/f45-build-26097-614/root/chroot_tmpdir/scmroot/perl-SVG-Graph'...
$ git fetch origin b8dfb10446a9302f6fb2f1828bac3e9987144cf5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-SVG-Graph
 * [new ref]         b8dfb10446a9302f6fb2f1828bac3e9987144cf5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b8dfb10 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild