$ git clone -n https://src.fedoraproject.org/rpms/python-curtsies.git /var/lib/mock/f45-build-30171-643/root/chroot_tmpdir/scmroot/python-curtsies
Cloning into '/var/lib/mock/f45-build-30171-643/root/chroot_tmpdir/scmroot/python-curtsies'...
$ git fetch origin f2ca8567d1d909e188b5425cd3ad9e69791c7a93:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-curtsies
 * [new ref]         f2ca8567d1d909e188b5425cd3ad9e69791c7a93 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f2ca856 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild