$ git clone -n https://src.fedoraproject.org/rpms/mingw-python-PyQt-builder.git /var/lib/mock/f45-build-18651-525/root/chroot_tmpdir/scmroot/mingw-python-PyQt-builder
Cloning into '/var/lib/mock/f45-build-18651-525/root/chroot_tmpdir/scmroot/mingw-python-PyQt-builder'...
$ git fetch origin 47b3273aa22412b032361d860b6f296a57a19329:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-python-PyQt-builder
 * [new ref]         47b3273aa22412b032361d860b6f296a57a19329 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 47b3273 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild