$ git clone -n https://src.fedoraproject.org/rpms/rubygem-puppet-resource_api.git /var/lib/mock/f45-build-35218-694/root/chroot_tmpdir/scmroot/rubygem-puppet-resource_api
Cloning into '/var/lib/mock/f45-build-35218-694/root/chroot_tmpdir/scmroot/rubygem-puppet-resource_api'...
$ git fetch origin bb49ae5afd20a329a6dea7fbd81209758fc3466d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-puppet-resource_api
 * [new ref]         bb49ae5afd20a329a6dea7fbd81209758fc3466d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb49ae5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild