$ git clone -n https://src.fedoraproject.org/rpms/golang-github-shopify-toxiproxy.git /var/lib/mock/f45-build-12402-442/root/chroot_tmpdir/scmroot/golang-github-shopify-toxiproxy
Cloning into '/var/lib/mock/f45-build-12402-442/root/chroot_tmpdir/scmroot/golang-github-shopify-toxiproxy'...
$ git fetch origin 73d5b5290e760c8b1b241d44d6c9acd7708d8455:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-shopify-toxiproxy
 * [new ref]         73d5b5290e760c8b1b241d44d6c9acd7708d8455 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73d5b52 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild