abandontransaction needed after spending orphaned block reward #14148

1. 
   domob1812 commented at 4:19 pm on September 4, 2018: contributor

   When a block reward is spent together with other outputs in the wallet and that block reward is later orphaned, the wallet does not show the other funds as available anymore. Even a -rescan is not enough - only -zapwallettxes or an explicit abandontransaction “recovers” the funds. I prepared a test case that shows this behaviour.

   Is this a known issue or the expected behaviour? While this situation is something that will presumably not occur in practice (as it requires a long reorg), I wonder if that transaction should be automatically abandoned as it seems clear it won’t be able to be confirmed anymore.

2. maflcko added the label Wallet on Sep 4, 2018
3. 
   promag commented at 1:22 pm on September 21, 2018: member

   Why should it be automatically abandoned only when spending rewards? What if there is another reorg bringing back the reward?
4. 
   maflcko commented at 12:28 pm on April 26, 2020: member

   Is this still an issue with a recent version of Bitcoin Core? If yes, what are the steps to reproduce?
5. maflcko closed this on Apr 26, 2020

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6. 
   domob1812 commented at 10:53 am on April 27, 2020: contributor

   @MarcoFalke Yes, this still applies to current master. I’ve re-created a testcase showing this behaviour: test.zip

   Of course, @promag’s point is valid. Perhaps that’s the expected behaviour.

7. 
   maflcko commented at 11:29 am on April 27, 2020: member

   I think this is still a bug. Maybe submit the test case as a pull request, so that this can be fixed easier?
8. maflcko reopened this on Apr 27, 2020

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11. 
    domob1812 commented at 7:28 am on April 28, 2020: contributor

    @MarcoFalke Sure, created #18795.
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domob1812 promag maflcko

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