So basiclly, I tried to use the Inventory dataTag with the /replaceitem command, and it didn't work, it gave me the item even though I didn't have the required item needed for the command to work.
MC-70138
DataTag doesn't work with /replaceitem
Resolved
Invalid
0
The data tag section of /replaceitem is the data tag to apply to the item, not the data tag to check the player for.