$ git clone -n https://src.fedoraproject.org/rpms/zeromq.git /var/lib/mock/f45-build-39327-733/root/chroot_tmpdir/scmroot/zeromq
Cloning into '/var/lib/mock/f45-build-39327-733/root/chroot_tmpdir/scmroot/zeromq'...
$ git fetch origin 2b568b01363eff740cc72599500094aab3073dc8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/zeromq
 * [new ref]         2b568b01363eff740cc72599500094aab3073dc8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b568b0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild