zarr.load fails with ZipStore unless read_only=False #3042

import sys

import numcodecs
import zarr
from zarr.storage import ZipStore

file = "test_data.zip"


def main():
    with ZipStore(file, mode="r", read_only=False) as zs:
        data = zarr.load(store=zs, path="some/data")  # This works
        print(data.shape)

    with ZipStore(file, mode="r") as zs:
        data = zarr.load(store=zs, path="some/data")  # This does not work
        print(data.shape)


if __name__ == "__main__":
    print(zarr.__version__)
    print(numcodecs.__version__)
    print(sys.version)
    main()