Fallback to msgid when translation is empty

Source/utils/language.cpp

@@ -285,46 +285,56 @@ bool ReadEntry(const std::byte *data, size_t dataSize, const MoEntry &e, char *r
 
 } // namespace
 
-std::string_view LanguageParticularTranslate(std::string_view context, std::string_view message)
-{
-	constexpr const char Glue = '\004';
-
-	std::string key = std::string(context);
+std::string_view LanguageParticularTranslate(std::string_view context, std::string_view message)
+{
+	constexpr const char Glue = '\004';
+
+	std::string key = std::string(context);
 	key.reserve(key.size() + 1 + message.size());
 	key += Glue;
 	key.append(message);
 
-	auto it = translation[0].find(key.c_str());
-	if (it == translation[0].end()) {
-		return message;
-	}
-
-	return GetTranslation(it->second);
-}
-
-std::string_view LanguagePluralTranslate(const char *singular, std::string_view plural, int count)
-{
-	const int n = GetLocalPluralId(count);
-
-	auto it = translation[n].find(singular);
-	if (it == translation[n].end()) {
-		if (count != 1)
-			return plural;
-		return singular;
-	}
-
-	return GetTranslation(it->second);
-}
-
-std::string_view LanguageTranslate(const char *key)
-{
-	auto it = translation[0].find(key);
-	if (it == translation[0].end()) {
-		return key;
-	}
-
-	return GetTranslation(it->second);
-}
+	auto it = translation[0].find(key.c_str());
+	if (it == translation[0].end()) {
+		return message;
+	}
+
+	const std::string_view translated = GetTranslation(it->second);
+	// Treat empty translations as missing (prevents invisible UI entries / silent screen reader output).
+	return translated.empty() ? message : translated;
+}
+
+std::string_view LanguagePluralTranslate(const char *singular, std::string_view plural, int count)
+{
+	const int n = GetLocalPluralId(count);
+
+	auto it = translation[n].find(singular);
+	if (it == translation[n].end()) {
+		if (count != 1)
+			return plural;
+		return singular;
+	}
+
+	const std::string_view translated = GetTranslation(it->second);
+	if (!translated.empty())
+		return translated;
+	// Treat empty translations as missing.
+	if (count != 1)
+		return plural;
+	return singular;
+}
+
+std::string_view LanguageTranslate(const char *key)
+{
+	auto it = translation[0].find(key);
+	if (it == translation[0].end()) {
+		return key;
+	}
+
+	const std::string_view translated = GetTranslation(it->second);
+	// Treat empty translations as missing.
+	return translated.empty() ? std::string_view(key) : translated;
+}
 
 bool HasTranslation(const std::string &locale)
 {