Various minor fixes (#856) #300

Job	Run time
linux-64-py3.10	5m 1s
estimation_mode_test	16m 26s
develop-docbuild	0s
prototype_mtc	43m 26s
macOS	11m 0s
placeholder_psrc	35m 19s
win-64	11m 14s
random_seed_generation_test	2m 34s
prototype_mtc	45m 35s
prototype_marin	1m 31s
prototype_psrc_in_development	11m 52s
prototype_mtc_extended	2h 15m 43s
placeholder_sandag	1h 55m 45s
prototype_sandag_xborder	4m 6s
production_semcog	4m 50s
prototype_mwcog	44m 5s
placeholder_multiple_zone	7m 30s
	8h 15m 57s

Provide feedback