Item entities with "bundle_contents" component only drop items when destroyed if they are a bundle, this is inconsistent with the "container" component which will drop it's items in most cases.
To Confirm
/give @s bundle[minecraft:bundle_contents=[{count:1, id:"minecraft:diamond"}]]Throw item on the ground.
/data modify entity @n[type=item] Fire set value 500The above command should set the item on fire.
Notice it drops the Diamond when the bundle is destroyed.
/give @s stick[minecraft:bundle_contents=[{count:1, id:"minecraft:diamond"}]]Throw item on the ground.
/data modify entity @n[type=item] Fire set value 500The above command should set the item on fire.
Notice how nothing is dropped when the item is destroyed.
Thank you for your report!
After consideration, the issue is being closed as Invalid.
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