Track (and restore) previous visual selection, point, mark for gv #689

Job	Run time
build (ubuntu-latest, 26.3, false)	32s
build (ubuntu-latest, 27.2, false)	35s
build (ubuntu-latest, 28.2, false)	35s
build (ubuntu-latest, 29.3, false)	51s
build (macos-latest, 28.2, false)	2m 54s
build (macos-latest, 29.3, false)	3m 25s
build (windows-latest, 26.3, false)	2m 23s
build (windows-latest, 27.2, false)	50s
build (windows-latest, 28.2, false)	38s
build (windows-latest, 29.3, false)	5m 50s
build (ubuntu-latest, snapshot, true)	34s
build (macos-latest, snapshot, true)	2m 11s
	21m 18s

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