Make heal tool not pick sensor dust spots to replace other sensor dust spots

What problem do you see this solving?

I am an outdoor landscape photographer.  I sometimes would use Healing tools to sensor dust spots.  To my very surprises, current healing tool would pick other sensor dust spot to replace the sensor dust spot I intend to remove.  This shouldn't be happening and need better algorithm for it.

Are you using any workarounds or other solutions to achieve your goals in Capture One?

I will then have to drag the source from the other sensor dust spot away and manually pick a clean spot to do the healing.  This is time and labor consuming and shouldn't be happening.