Origin: upstream, commit:f1369d3a5ae1beca7a01fd06719ffe93f39cfb47
Author: Dmitri Ovodok <dmitrio95@yandex.ru>
Description: Plugins: fix a crash on getting element's parent if parent is null

--- a/mscore/plugin/api/elements.cpp
+++ b/mscore/plugin/api/elements.cpp
@@ -123,6 +123,9 @@ void Chord::remove(Ms::PluginAPI::Elemen
 
 Element* wrap(Ms::Element* e, Ownership own)
       {
+      if (!e)
+            return nullptr;
+
       using Ms::ElementType;
       switch(e->type()) {
             case ElementType::NOTE:
--- a/mscore/plugin/api/scoreelement.cpp
+++ b/mscore/plugin/api/scoreelement.cpp
@@ -105,6 +105,8 @@ void ScoreElement::set(Ms::Pid pid, QVar
 
 ScoreElement* wrap(Ms::ScoreElement* se, Ownership own)
       {
+      if (!se)
+            return nullptr;
       if (se->isElement())
             return wrap(toElement(se), own);