Merge #10445: Add test for empty chain and reorg consistency for gettxoutsetinfo.

513da90cd Add test for empty chain and reorg consistency for gettxoutsetinfo. (Gregory Maxwell)
822755a42 Fix: make CCoinsViewDbCursor::Seek work for missing keys (Pieter Wuille)

Tree-SHA512: e549921e8b8f599bf61ebe0ee7ef1d2f474043723d633e24665fe434b996a98e039612de8a1c2cd16b63f154943ff5ea1c1935e9561cfb813a00d47d926d0b22

1 files changed, 5 insertions, 1 deletions

diff --git a/src/txdb.cpp b/src/txdb.cpp
index 42dc31760b..76aab23983 100644
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -98,7 +98,11 @@ CCoinsViewCursor *CCoinsViewDB::Cursor() const
        that restriction.  */
     i->pcursor->Seek(DB_COINS);
     // Cache key of first record
-    i->pcursor->GetKey(i->keyTmp);
+    if (i->pcursor->Valid()) {
+        i->pcursor->GetKey(i->keyTmp);
+    } else {
+        i->keyTmp.first = 0; // Make sure Valid() and GetKey() return false
+    }
     return i;
 }