P: Smart-collection operator "is empty" doesn't work for Alt Text and Extended Description.
The smart-collection operator "is empty" doesn't work for Alt Text and Extended Description. To reproduce in LR 13.3 / Mac OS:
1. Download and open this tiny catalog:
The catalog has two photos, "empty.jpg" with all blank metadata fields and "non-empty.jpg" with Alt Text, Extended Description, and other text fields non-empty.
2. Observe that the smart collections "Alt Text is empty" and "Extended Description is empty" contain no matching photos -- they should contain one each:
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