[core][axis] copy radios before calling compute_near and compute_global

tomwer/core/process/reconstruction/axis/axis.py

@@ -158,7 +158,7 @@ def compute_scan_global(scan):
     _logger.info('compute scan axis from global method for %s with pc_height: '
                  '%f, pc_width: %f' % (scan.path, pc_height, pc_width))
 
-    return compute_global(radio_1=radio_1, radio_2=radio_2,
+    return compute_global(radio_1=radio_1.copy(), radio_2=radio_2.copy(),
                           pc_height=pc_height, pc_width=pc_width)
 
 
@@ -182,7 +182,7 @@ def compute_scan_near(scan):
                        scan.axis_params.fine_step_x,
                        scan.axis_params.look_at_stdmax))
 
-    return compute_near(radio_1=radio_1, radio_2=radio_2,
+    return compute_near(radio_1=radio_1.copy(), radio_2=radio_2.copy(),
                         near_pos=scan.axis_params.near_position,
                         window_size=scan.axis_params.near_wx,
                         fine_step_x=scan.axis_params.fine_step_x,