$ git clone -n https://src.fedoraproject.org/rpms/rubygem-net-http-digest_auth.git /var/lib/mock/f45-build-35109-693/root/chroot_tmpdir/scmroot/rubygem-net-http-digest_auth
Cloning into '/var/lib/mock/f45-build-35109-693/root/chroot_tmpdir/scmroot/rubygem-net-http-digest_auth'...
$ git fetch origin e84eafde525c2ca8b622b82a3bc0bb4874b4d2aa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-net-http-digest_auth
 * [new ref]         e84eafde525c2ca8b622b82a3bc0bb4874b4d2aa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e84eafd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild