Fix edge-case in preprocess_data, if label_namer is optional and unset.#16613
Merged
timhoffm merged 2 commits intomatplotlib:masterfrom Mar 1, 2020
Merged
Fix edge-case in preprocess_data, if label_namer is optional and unset.#16613timhoffm merged 2 commits intomatplotlib:masterfrom
timhoffm merged 2 commits intomatplotlib:masterfrom