[Bug]: warning for incorrect data shape for dataset of references

[stephprince]

What happened?

When running Images roundtrip tests, get_dimension_labels_from_spec returns a warning because the shape of the
ImageReferences dataset does not match the shape of the spec.

The shape of image references is calculated from get_data_shape as [num_images, x, y], where x, y are the shape of the image data, while the shape expected from ImageReferences in the schema is [num_images].

Steps to Reproduce

pytest tests/integration/hdf5/test_base.py   # from pynwb test suite

Traceback

tests/integration/hdf5/test_base.py::TestImagesIO::test_roundtrip
tests/integration/hdf5/test_base.py::TestImagesIO::test_roundtrip_export
  /Users/smprince/Documents/code/hdmf/src/hdmf/build/objectmapper.py:868: IncorrectDatasetShapeBuildWarning: Shape of data does not match shape in spec 'ImageReferences'
    warnings.warn(msg, IncorrectDatasetShapeBuildWarning)

Operating System

macOS

Python Executable

Conda

Python Version

3.12

Package Versions

No response