roller: bug fix in looking for sending diff
?~ sen=(get:ors:dice sending [address nonce])
~? lverb [dap.bowl %weird-double-remove nonce+nonce]
sending
- ?~ nin=(find [raw-tx.diff]~ (turn txs.u.sen tail))
+ ?~ nin=(find [raw-tx.diff]~ (turn txs.u.sen (cork tail tail)))
~? lverb [dap.bowl %weird-unknown nonce+nonce]
sending
=. txs.u.sen (oust [u.nin 1] txs.u.sen)
