Blender Git Loki

Fix missing cursor changes with "Lock Object Modes" disabled

Changing the active object would change the mode, but the necessary
toolsystem update to change the cursor was not run.

Steps to recreate were:
* Duplicate default cube
* Enter sculpt mode with one of the cubes
* Disable Edit > Lock Object Modes
* Select back-and-forth between the objects

Same would happen with other modes.