Header inconsistency after invalidate/reconsider block #26245

1. 
   fanquake commented at 12:59 pm on October 4, 2022: member

   Demonstration using regtest.

   0# getblockchaininfo
   1  "chain": "regtest",
   2  "blocks": 0,
   3  "headers": 0,
   

   Mine a block

   0# getblockchaininfo
   1  "chain": "regtest",
   2  "blocks": 1,
   3  "headers": 1,
   

   Call invalidateblock

    0# getblockchaininfo
    1  "chain": "regtest",
    2  "blocks": 0,
    3  "headers": 0,
    4# getchaintips
    5    "height": 1,
    6    "hash": "06702ef73c7d8629294f8b6386646f888d60979932ba2ee45e3495d8f25006b5",
    7    "branchlen": 1,
    8    "status": "invalid"
    9  },
   10  {
   11    "height": 0,
   12    "hash": "0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206",
   13    "branchlen": 0,
   14    "status": "active"
   

   Call reconsiderblock

   0# getchaintips
   1    "height": 1,
   2    "hash": "06702ef73c7d8629294f8b6386646f888d60979932ba2ee45e3495d8f25006b5",
   3    "branchlen": 0,
   4    "status": "active"
   

   Header count returned by getblockchaininfo is now < # of blocks.

   0# getblockchaininfo
   1  "chain": "regtest",
   2  "blocks": 1,
   3  "headers": 0,
   

2. fanquake added the label Bug on Oct 4, 2022
3. MarcoFalke added the label Validation on Oct 4, 2022
4. 
   MarcoFalke commented at 1:05 pm on October 4, 2022: member

   Is this a regression?
5. 
   fanquake commented at 1:54 pm on October 4, 2022: member

   Is this a regression?

   Can recreate the same behaviour with builds of 23.x and 22.x.

Contributors
fanquake MarcoFalke

Labels
Bug Validation