Fix sphere smoothing #1880

Job	Run time
Detect File Changes	6s
Github (ubuntu, mpi, debug, true)	1h 7m 39s
Self Hosted (cpu, gt)	51m 14s
Github (ubuntu, mpi, debug, false)	2h 33m 29s
Self Hosted (gpu, gt)	22m 43s
Github (ubuntu, mpi, no-debug, true)	1h 10m 22s
Self Hosted (gpu, frontier)	22m 59s
Github (ubuntu, mpi, no-debug, false)	1h 50m 48s
Github (macos, mpi, debug, false)	44m 14s
Github (macos, mpi, no-debug, false)	59m 46s
Github (ubuntu, no-mpi, single, no-debug, false)	25m 41s
	10h 29m 1s

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