FTBTeam/FTB-Builders-Paradise#21

log: https://paste.feed-the-beast.com/view/ac74a5a4

was going to excavate blue leaves from a tree with a tinkers mattock containing a silky jewel. As soon as I hit the button to excavate the leaves, the game crashed.

Looks like #2336 but the info about using excavate is interesting, no one has mentioned that before. It looks like at some point I should try and isolate which mods from the pack cause this.

fixed by #2431 I believe