$ git clone -n https://src.fedoraproject.org/rpms/python-notify2.git /var/lib/mock/f45-build-31743-655/root/chroot_tmpdir/scmroot/python-notify2
Cloning into '/var/lib/mock/f45-build-31743-655/root/chroot_tmpdir/scmroot/python-notify2'...
$ git fetch origin e2430a8cbb20136da27adc1dbfff9b65b18bdc6d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-notify2
 * [new ref]         e2430a8cbb20136da27adc1dbfff9b65b18bdc6d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2430a8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild