Shovel - Failure to fill sandbag loses all stored dirt

[traunts]

Describe the bug
When the Fill Sandbag pie slice is used with the shovel while having collected less than 10 units of sand, it will fail to produce a sandbag as expected but still remove all units.

To Reproduce
Steps to reproduce the behavior:

1. Equip an actor with Ronin Shovel
2. Dig up < 10 units of sand
3. Attempt to Fill Sandbag from pie menu
4. Sand held is reset, shovel displays defalt ammo capacity of infinite

Expected behavior
Presumably a slight lua mistake, shovel should only remove units if a sandbag is successfully created

[traunts]

On closer inspection, this seems to be because the pie slice isn't disabled when below 10 like it should be, pictured here:

[traunts]

And it's presumably removed because this line that deletes it isn't captured in the statement that checks if there's enough resource to create a new sandbag:

[fourZK]

That's odd, like traunts mentioned - the slice shouldn't be available unless the resource conditions are met. I'll add an extra failsafe step for this.