Merge branch 'main' into dev

src/logic/scripting/lua/libs/libbyteutil.cpp

@@ -137,7 +137,7 @@ static int l_unpack(lua::State* L) {
     for (size_t i = 0; format[i]; i++) {
         switch (format[i]) {
             case 'b':
-                lua::pushinteger(L, reader.get());
+                lua::pushinteger(L, static_cast<int8_t>(reader.get()));
                 break;
             case 'B':
                 lua::pushinteger(L, reader.get() & 0xFF);

src/logic/scripting/lua/libs/libgeneration.cpp

@@ -44,7 +44,7 @@ static int l_create_fragment(lua::State* L) {
 
 static int l_load_fragment(lua::State* L) {
     dv::value map;
-    if (!lua::isstring(L, 1)) {
+    if (lua::isstring(L, 1)) {
         io::path path = lua::require_string(L, 1);
         if (!io::exists(path)) {
             throw std::runtime_error("file "+path.string()+" does not exist");