$ git clone -n https://src.fedoraproject.org/rpms/vagrant-hostmanager.git /var/lib/mock/f40-build-2044461-48711/root/chroot_tmpdir/scmroot/vagrant-hostmanager
Cloning into '/var/lib/mock/f40-build-2044461-48711/root/chroot_tmpdir/scmroot/vagrant-hostmanager'...
$ git fetch origin 6f8778c5f921adb05c823898767bd589193958b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vagrant-hostmanager
 * [new ref]         6f8778c5f921adb05c823898767bd589193958b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f8778c Update to 1.8.10