$ git clone -n https://src.fedoraproject.org/rpms/python-virtualenv-api.git /var/lib/mock/f45-build-33593-671/root/chroot_tmpdir/scmroot/python-virtualenv-api
Cloning into '/var/lib/mock/f45-build-33593-671/root/chroot_tmpdir/scmroot/python-virtualenv-api'...
$ git fetch origin b461783562bbf7ceed62910ba45c4976dff5ea73:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-virtualenv-api
 * [new ref]         b461783562bbf7ceed62910ba45c4976dff5ea73 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b461783 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild