Minimum Support for Appending References in Hdmf-Zarr (#1157)

* Minimum Support * Update CHANGELOG.md
hdmf-dev · Jul 31, 2024 · a98e5e9 · a98e5e9
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # HDMF Changelog
 
+## HDMF 3.14.4 (Upcoming)
+
+### Enhancements
+- Added support to append to a dataset of references for HDMF-Zarr. @mavaylon1 [#1157](https://github.com/hdmf-dev/hdmf/pull/1157)
+
 ## HDMF 3.14.3 (July 29, 2024)
 
 ### Enhancements

diff --git a/src/hdmf/data_utils.py b/src/hdmf/data_utils.py
@@ -18,7 +18,8 @@
 from .utils import docval, getargs, popargs, docval_macro, get_data_shape
 
 def append_data(data, arg):
-    if isinstance(data, (list, DataIO)):
+    from hdmf.backends.hdf5.h5_utils import HDMFDataset
+    if isinstance(data, (list, DataIO, HDMFDataset)):
         data.append(arg)
         return data
     elif type(data).__name__ == 'TermSetWrapper': # circular import