$ git clone -n https://src.fedoraproject.org/rpms/python-flake8-builtins.git /var/lib/mock/f45-build-30679-647/root/chroot_tmpdir/scmroot/python-flake8-builtins
Cloning into '/var/lib/mock/f45-build-30679-647/root/chroot_tmpdir/scmroot/python-flake8-builtins'...
$ git fetch origin f1ca979990fad72fcf321d953f220707ac07f758:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-flake8-builtins
 * [new ref]         f1ca979990fad72fcf321d953f220707ac07f758 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f1ca979 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild