$ git clone -n https://src.fedoraproject.org/rpms/python-colormath2.git /var/lib/mock/f45-build-30073-642/root/chroot_tmpdir/scmroot/python-colormath2
Cloning into '/var/lib/mock/f45-build-30073-642/root/chroot_tmpdir/scmroot/python-colormath2'...
$ git fetch origin 6a94cc654e7a9a548367754cc429dff79f2b429e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-colormath2
 * [new ref]         6a94cc654e7a9a548367754cc429dff79f2b429e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a94cc6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild