$ git clone -n https://src.fedoraproject.org/rpms/pyosmium.git /var/lib/mock/f40-build-763320-122469/root/chroot_tmpdir/scmroot/pyosmium
Cloning into '/var/lib/mock/f40-build-763320-122469/root/chroot_tmpdir/scmroot/pyosmium'...
$ git fetch origin 566f09bc5e6179b04385847e70dba918601d0ad4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pyosmium
 * [new ref]         566f09bc5e6179b04385847e70dba918601d0ad4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 566f09b Update to 3.7.0 upstream release