From: rubenwardy <rubenwardy@gmail.com>
Date: Sat, 19 Aug 2017 18:43:02 +0000 (+0100)
Subject: Fix empty legacy meta being persisted
X-Git-Tag: 5.0.0~844
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=557bbc670451f82c384032383df80a1a92ffe724;p=oweals%2Fminetest.git

Fix empty legacy meta being persisted
---

diff --git a/src/itemstackmetadata.cpp b/src/itemstackmetadata.cpp
index 02c548abb..f63671425 100644
--- a/src/itemstackmetadata.cpp
+++ b/src/itemstackmetadata.cpp
@@ -14,8 +14,9 @@ void ItemStackMetadata::serialize(std::ostream &os) const
 	std::ostringstream os2;
 	os2 << DESERIALIZE_START;
 	for (const auto &stringvar : m_stringvars) {
-		os2 << stringvar.first << DESERIALIZE_KV_DELIM
-		    << stringvar.second << DESERIALIZE_PAIR_DELIM;
+		if (!stringvar.first.empty() || !stringvar.second.empty())
+			os2 << stringvar.first << DESERIALIZE_KV_DELIM
+				<< stringvar.second << DESERIALIZE_PAIR_DELIM;
 	}
 	os << serializeJsonStringIfNeeded(os2.str());
 }