Add zero check in tx.Sender func #10737
Merged
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This is an additional check as #9990 could not be reliably reproduced.
The conjecture is that at some point there is a race condition somewhere related to either storing snapshot file for an older block or updating the DB for a more recent block.
Somewhere the code sets sender value directly to zero or overwrites a pointer, leading to sender address being incorrectly assigned to ZERO.