Update the wallet best block marker when pruning

src/main.cpp

@@ -2262,7 +2262,7 @@ bool static FlushStateToDisk(CValidationState &state, FlushStateMode mode) {
             return AbortNode(state, "Failed to write to coin database");
         nLastFlush = nNow;
     }
-    if ((mode == FLUSH_STATE_ALWAYS || mode == FLUSH_STATE_PERIODIC) && nNow > nLastSetChain + (int64_t)DATABASE_WRITE_INTERVAL * 1000000) {
+    if (fDoFullFlush || ((mode == FLUSH_STATE_ALWAYS || mode == FLUSH_STATE_PERIODIC) && nNow > nLastSetChain + (int64_t)DATABASE_WRITE_INTERVAL * 1000000)) {
         // Update best block in wallet (so we can detect restored wallets).
         GetMainSignals().SetBestChain(chainActive.GetLocator());
         nLastSetChain = nNow;