DEV: return path to tmp file after copy
DEV: return path to tmp file after copy

Former-commit-id: 93b53bb06c63694e2ec562d4c33fc8c17d957f31
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox