Various minor fixes (#856) #139

Job	Run time
linux-64-py3.10	4m 57s
estimation_mode_test	16m 25s
develop-docbuild	3m 50s
prototype_mtc	42m 33s
macOS	15m 34s
placeholder_psrc	35m 43s
prototype_mtc	45m 57s
win-64	11m 43s
random_seed_generation_test	2m 25s
prototype_marin	1m 32s
prototype_psrc_in_development	16m 42s
prototype_mtc_extended	2h 10m 6s
placeholder_sandag	1h 52m 9s
prototype_sandag_xborder	4m 6s
production_semcog	4m 55s
prototype_mwcog	43m 55s
placeholder_multiple_zone	7m 37s
	8h 20m 9s

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