Function "minecraft:sequence" in item modifiers ignores conditions

How to reproduce: put any item in the first slot of your hotbar and run the following command:

/item modify entity @s hotbar.0 {conditions:[{condition:"minecraft:random_chance",chance:0}],function:"minecraft:sequence",functions:[{function:"minecraft:set_item",item:"minecraft:diamond"}]}

Even though the condition is impossible (0% chance), the item turns into a diamond. If instead of a sequence we specify the set_item directly:

/item modify entity @s hotbar.0 {conditions:[{condition:"minecraft:random_chance",chance:0}],function:"minecraft:set_item",item:"minecraft:diamond"}

it works as expected and doesn’t turn the item to diamond. This issue also affects item modifiers in json files in datapacks.