$ git clone -n https://src.fedoraproject.org/rpms/perl-SVGPDF.git /var/lib/mock/f41-build-side-1-3106352-39375/root/chroot_tmpdir/scmroot/perl-SVGPDF
Cloning into '/var/lib/mock/f41-build-side-1-3106352-39375/root/chroot_tmpdir/scmroot/perl-SVGPDF'...
$ git fetch origin 605c3765ea2f063608849ecedb6acca6ce2e28b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-SVGPDF
 * [new ref]         605c3765ea2f063608849ecedb6acca6ce2e28b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 605c376 Fix summary.