use all TAZs when using sharrow #1104

Job	Run time
linux-64-py	33s
matrix.region	0s
matrix.region	0s
matrix.label	0s
Estimation Notebooks Test	0s
Estimation Mode Unit Tests	0s
develop-docbuild	0s
random_seed_generation_test	0s
estimation_edb_creation_test	0s
Expression Profiling Tests	0s
	33s

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