$ git clone -n https://src.fedoraproject.org/rpms/vym.git /var/lib/mock/f45-build-38211-722/root/chroot_tmpdir/scmroot/vym
Cloning into '/var/lib/mock/f45-build-38211-722/root/chroot_tmpdir/scmroot/vym'...
$ git fetch origin d173e1521b6f8e81b375bc6c3e1fb57efae4a316:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vym
 * [new ref]         d173e1521b6f8e81b375bc6c3e1fb57efae4a316 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d173e15 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild