inventory seeds blocked for planting

[gravesmerch]

1. acquire a bunch of seeds items to plant (same kind)
2. setup movement blocking objects around the field
3. shift r-click seed item to activate area planting
4. try to plant in a tile so that your movement will be interrupted by step 2 objects
5. repeat step 3 but use a different seed item each attempt

eventually all inventory seeds will be highlighted for planting, and you won't be able use them, unless you restart client or something