Fixed undefined ref error when setting a data validation that is a range of cells at the worksheet level#1480

Merged

alubbe merged 2 commits intoexceljs:masterfrom

Bene-Graham:fix-bug-1027

Oct 1, 2020

Commits on Sep 30, 2020

Fixed undefined ref error when setting a data validation that is a range of cells at the worksheet level
Bene-Graham
committed

Commits on Oct 1, 2020

Resolves feedback from the PR
Bene-Graham
committed