init: disallow reindex-chainstate with optional indexes

It currently leads to corruption (coinstatsindex) or
data duplication (blockfilterindex), so disable it.

1 files changed, 6 insertions, 0 deletions

diff --git a/test/functional/p2p_blockfilters.py b/test/functional/p2p_blockfilters.py
index e45cef65bd..2ffc825acd 100755
--- a/test/functional/p2p_blockfilters.py
+++ b/test/functional/p2p_blockfilters.py
@@ -250,6 +250,12 @@ class CompactFiltersTest(BitcoinTestFramework):
         msg = "Error: Cannot set -peerblockfilters without -blockfilterindex."
         self.nodes[0].assert_start_raises_init_error(expected_msg=msg)
 
+        self.log.info("Test -blockfilterindex with -reindex-chainstate raises an error")
+        self.nodes[0].assert_start_raises_init_error(
+            expected_msg='Error: -reindex-chainstate option is not compatible with -blockfilterindex. '
+            'Please temporarily disable blockfilterindex while using -reindex-chainstate, or replace -reindex-chainstate with -reindex to fully rebuild all indexes.',
+            extra_args=['-blockfilterindex', '-reindex-chainstate'],
+        )
 
 def compute_last_header(prev_header, hashes):
     """Compute the last filter header from a starting header and a sequence of filter hashes."""