fix dimensionality reading for tensor field #766

Job	Run time
Check library dependencies ship with valid licenses	40s
Smoke test and building	34s
Running documentation style checks	20s
Building library documentation	8m 57s
Test library (windows-latest, 3.9)	1m 6s
Test library (windows-latest, 3.10)	1m 2s
Test library (windows-latest, 3.11)	1m 8s
Test library (windows-latest, 3.12)	1m 9s
Test library (ubuntu-20.04, 3.9)	1m 0s
Test library (ubuntu-20.04, 3.10)	58s
Test library (ubuntu-20.04, 3.11)	59s
Test library (ubuntu-20.04, 3.12)	1m 3s
Release to public PyPI	1s
Deploy stable documentation	1s
Deploy developers documentation	1s
	18m 59s

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