$ git clone -n https://src.fedoraproject.org/rpms/python-txzmq.git /var/lib/mock/f45-build-33422-669/root/chroot_tmpdir/scmroot/python-txzmq
Cloning into '/var/lib/mock/f45-build-33422-669/root/chroot_tmpdir/scmroot/python-txzmq'...
$ git fetch origin 0f68f096f5f236a12de25260d3dc7141a0ce34ef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-txzmq
 * [new ref]         0f68f096f5f236a12de25260d3dc7141a0ce34ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f68f09 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild