You can choose whether Capture One should automatically select all the adjustments that you have made on the image when you click on Copy.
The Autoselect feature is controlled by clicking on the action icon and selecting Autoselect -> Adjusted or Autoselect -> Adjusted except Composition. The latter option ensures that adjustments like Crop, Rotation and Keystone settings are not copied from one image to others as these will typically need to be set on an image per image basis. You can also turn the Autoselect feature off by selecting None.
Note that the default option is set to Adjusted except Composition in Capture One 12 unless you have upgraded from Capture One 11. Then it will be set to Adjusted (and thus include the Composition tools).