fix branch on sandag external test #992

Job	Run time
linux-64-py	5m 37s
random_seed_generation_test	3m 10s
macOS	8m 38s
win-64	8m 31s
Standard 2-Zone Example (SANDAG)	43s
Standard 1-Zone Example (MTC)	47s
prototype_mtc	51m 44s
placeholder_psrc	47m 17s
placeholder_sandag	2h 27m 10s
prototype_mtc_extended	1h 18m 35s
placeholder_multiple_zone	10m 12s
prototype_mwcog	50m 45s
prototype_marin	1m 57s
prototype_sandag_xborder	6m 45s
Expression Profiling Tests	7m 46s
production_semcog	6m 28s
Estimation Mode Unit Tests	7m 48s
develop-docbuild	0s
	7h 23m 53s

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