[BUG] Infinite task completion glitch through smelt-related jobs

[Senteris]

Describe the bug
When the player's inventory is full and tries de take smelt items using Shift-LeftClick, the smelting is being counted by the plugin but the item still stays in the furnace. It is possible to indefinitely reclick on the same items and it will be counted again by the plugin.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Furnace (with full inventory)'
2. Shift+L-Click on 'smelt items'
3. See the task getting completed without the smelt items being taken
4. Repeat

Expected behavior
It should be counted only once.

Software Details:

• Server Software: [PaperSpigot]
• Server Software Version [1.21.1]
• Plugin Version [1.0 pre-release]
• Java Version: [latest]