"Remove" buttons for descriptions get duplicated when there are multiple descriptions and you use the "Copy metadata" feature.
Description
Description
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Details
Event Timeline
Comment Actions
Change 288138 had a related patch set uploaded (by Bartosz Dziewoński):
uw.DescriptionsDetailsWidget: Remove any "Remove" buttons when clearing items
Comment Actions
Change 288138 merged by jenkins-bot:
uw.DescriptionsDetailsWidget: Remove any "Remove" buttons when clearing items