initial string before appending

src/TextBlock.cpp

@@ -140,12 +140,12 @@ size_t TextBlock::setValue(std::string value) {
 }
 
 std::string TextBlock::getValue() {
-    std::string value;
+    std::string value = "";
     for(auto s : this->lines) {
         value += s + '\r';
     }
     //std::cout << "TextBlock::getValue before strip[" << !this->trailingNewline << "] [" << value << "] lines[" << this->lines.size() << "]" << std::endl;
-    if (!this->trailingNewline) {
+    if (!this->trailingNewline && this->lines.size()) {
         value.pop_back();
     }
     return value;