$ git clone -n https://src.fedoraproject.org/rpms/python-iniconfig.git /var/lib/mock/f45-build-39488-735/root/chroot_tmpdir/scmroot/python-iniconfig
Cloning into '/var/lib/mock/f45-build-39488-735/root/chroot_tmpdir/scmroot/python-iniconfig'...
$ git fetch origin 90b5a64e2b4e307ff64e24a7abf56ba0e81dc33e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-iniconfig
 * [new ref]         90b5a64e2b4e307ff64e24a7abf56ba0e81dc33e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90b5a64 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild