[gui][axis] avoid update of `axis_params` that could lead to redo mode set and sometimes with the previous value.
Fix ci post 0 6 See merge request tomotools/tomwer!314
- `process_sample_file` should return a tuple of created scan instead of None.
- use a weakref on the control - fix issues with signal type
# Conflicts: # orangecontrib/tomwer/widgets/control/NXTomomillOW.py # tomwer/core/scan/blissscan.py
