Does the prayer become invalid if one's full sister adjusts the prayer rug by extending her arm without passing in front of the worshipper during prayer?

The ruling on the sutrah for the worshipper and what ensues for one who passes in front of him during prayer was previously mentioned in Fatwa no. 45556. It stated that the correct view is that a woman passing in front of a worshipper does not invalidate his prayer. So, what about something less significant than that, like moving a rug?