Fix CheckBlockIndex for reindex. #6012

1. 
   mrbandrews commented at 6:13 PM on April 14, 2015: contributor

   Some tests in CheckBlockIndex require chainActive.Tip(), but when reindexing, chainActive has not been set on the first call to CheckBlockIndex.

   reindex.py starts a node, mines 3 blocks, stops, and reindexes with CheckBlockIndex enabled.

2. Fix CheckBlockIndex for reindex.

   Some tests in CheckBlockIndex require chainActive.Tip(), but when reindexing, chainActive has not been set on the first call to CheckBlockIndex.
   
   reindex.py starts a node, mines 3 blocks, stops, and reindexes with CheckBlockIndex enabled.

   0421c18f3a
3. 
   morcos commented at 6:34 PM on April 14, 2015: member

   Could be a candidate for 0.10.1

4. laanwj added the label Tests on Apr 15, 2015
5. 
   laanwj commented at 8:50 AM on April 15, 2015: member

   utACK, also for 0.10

6. laanwj added this to the milestone 0.10.0 on Apr 15, 2015
7. 
   sipa commented at 10:02 AM on April 15, 2015: member

   utACK for 0.10

8. laanwj merged this on Apr 16, 2015
9. laanwj closed this on Apr 16, 2015

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10. laanwj referenced this in commit 8f955b9661 on Apr 16, 2015
11. laanwj referenced this in commit 57d1f46952 on Apr 16, 2015
12. reddink referenced this in commit 6161588731 on Jul 11, 2020
13. reddink referenced this in commit 964a49b160 on Jul 14, 2020
14. MarcoFalke locked this on Sep 8, 2021

Milestone
0.10.0