$ git clone -n https://src.fedoraproject.org/rpms/python-pymapvbvd.git /var/lib/mock/f40-build-2542691-61883/root/chroot_tmpdir/scmroot/python-pymapvbvd
Cloning into '/var/lib/mock/f40-build-2542691-61883/root/chroot_tmpdir/scmroot/python-pymapvbvd'...
$ git fetch origin f2f44d0e41544f2d856d1f1e10d6f2f6bbefca9e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pymapvbvd
 * [new ref]         f2f44d0e41544f2d856d1f1e10d6f2f6bbefca9e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f2f44d0 Update to 0.5.7 (close RHBZ#2262160)