Introduce style compatibility for old scores

Author: mike-spa

src/engraving/style/style.cpp

@@ -360,6 +360,10 @@ void MStyle::read(XmlReader& e, compat::ReadChordListHook* readChordListHook)
         }
     }
 
+    if (m_version < 420) {
+        set(Sid::tiePlacementChord, TiePlacement::INSIDE);
+    }
+
     if (readChordListHook) {
         readChordListHook->validate();
     }