ckdb - allow an empty merkle since it is possible for bitcoind to return one

src/ckdb.c

@@ -2783,14 +2783,13 @@ static enum cmd_values breakdown(K_ITEM **ml_item, char *buf, tv_t *now,
 				while (*end && *end != JSON_ARRAY_END)
 					end++;
 				if (end < next+1) {
-					LOGERR("JSON '%s' zero length value "
-						"was:%.32s... buf=%.32s...",
+					LOGWARNING("JSON '%s' zero length array"
+						" was:%.32s... buf=%.32s...",
 						transfer->name,
 						st = safe_text(was),
 						st2 = safe_text(buf));
 					FREENULL(st);
 					FREENULL(st2);
-					goto nogood;
 				}
 				siz = end - next;
 				end++;
@@ -2812,14 +2811,13 @@ static enum cmd_values breakdown(K_ITEM **ml_item, char *buf, tv_t *now,
 					goto nogood;
 				}
 				if (next == end) {
-					LOGERR("JSON '%s' zero length value "
-						"was:%.32s... buf=%.32s...",
+					LOGWARNING("JSON '%s' zero length value"
+						" was:%.32s... buf=%.32s...",
 						transfer->name,
 						st = safe_text(was),
 						st2 = safe_text(buf));
 					FREENULL(st);
 					FREENULL(st2);
-					goto nogood;
 				}
 				siz = end - next;
 			}

src/ckdb.h

@@ -55,7 +55,7 @@
 
 #define DB_VLOCK "1"
 #define DB_VERSION "1.0.4"
-#define CKDB_VERSION DB_VERSION"-1.603"
+#define CKDB_VERSION DB_VERSION"-1.610"
 
 #define WHERE_FFL " - from %s %s() line %d"
 #define WHERE_FFL_HERE __FILE__, __func__, __LINE__