Fix chemistry‑related bugs #2082

Job	Run time
Detect File Changes	12s
Self Hosted (gpu, frontier)	31m 36s
Self Hosted (cpu, gt)	31m 37s
Github (ubuntu, mpi, no-debug, true)	1h 17m 59s
Github (ubuntu, mpi, debug, false)	1h 38m 4s
Github (ubuntu, mpi, no-debug, false)	1h 55m 17s
Github (ubuntu, mpi, debug, true)	1h 29m 35s
Self Hosted (gpu, gt)	31m 37s
Github (ubuntu, no-mpi, single, no-debug, false)	24m 9s
Github (macos, mpi, no-debug, false)	53m 34s
Github (macos, mpi, debug, false)	36m 41s
	9h 50m 21s

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