Corrected size button reset.
Corrected size button reset.


Former-commit-id: 0f46d24874be21b9b8c3c7c5141a4dc3ae63f293
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox