Fixed multiple key deletion.

depends/packages/libsodium.mk

@@ -2,7 +2,7 @@ package=libsodium
 $(package)_version=1.0.18
 $(package)_download_path=https://download.libsodium.org/libsodium/releases/
 $(package)_file_name=$(package)-$($(package)_version)-stable.tar.gz
-$(package)_sha256_hash=7673be93a53f6dcfebc03122063ca65a26e2eea723788d1b826abe6d5fcf3837
+$(package)_sha256_hash=f9f2114ef2460c80d97db07a3fe6fcd058cdb4ffb5ca84f4b4c61f81b2907289
 
 define $(package)_set_vars
 $(package)_config_opts_mingw32+=CFLAGS="-Ofast -fomit-frame-pointer -march=pentium3 -mtune=westmere"

src/keva/main.cpp

@@ -39,9 +39,11 @@ void
 CKevaTxUndo::apply(CCoinsViewCache& view) const
 {
   if (isNew) {
-    view.DeleteKey(nameSpace, key);
-  }
-  else {
+    CKevaData oldData;
+    if (view.GetName(nameSpace, key, oldData)) {
+      view.DeleteKey(nameSpace, key);
+    }
+  } else {
     view.SetKeyValue(nameSpace, key, oldData, true);
   }
 }