Fix drop_encoding to avoid copying data (GH#11390) - #11394
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dcherian merged 1 commit intoJun 24, 2026
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drop_encoding() was triggering a full copy of the underlying data array via _replace, which causes OOM on large datasets. Changed _replace to skip the data copy when only encoding/attrs/dims are being updated — this makes drop_encoding() a true shallow operation as the docs suggest.