There's a long discussion of this on the Rumours DVD-Audio commentary track. They play the original version of "Keep Me There" (or a version close to the original) and talk about the evolution of the song.
The funny thing about it is that Stevie says that she at first didn't like John's bass breakdown/solo in the middle. She said when she first heard it, it immediately made her think, "THE MONSTERS ARE COMING!!!"
I'm sure she likes it now. How could she not, after playing it every concert of every Mac tour for almost 30 years...?
Not to mention that she even played it solo as a Street Angel tour encore...