fix(group): accept must_understand=false extra fields in v3 group metadata - #4451

fix(group): accept must_understand=false extra fields in v3 group metadata#4451

d-v-b wants to merge 6 commits into

zarr-developers:mainzarr-developers/zarr-python:mainfrom

d-v-b:fix/group-metadata-extra-fieldsd-v-b/zarr-python:fix/group-metadata-extra-fieldsCopy head branch name to clipboard