Merge pull request #18445 from RomanPudashkin/crash_when_open_score_fix

crash_when_open_score_fix

Author: RomanPudashkin

src/engraving/rw/read400/readcontext.cpp

@@ -517,12 +517,15 @@ void ReadContext::clearOrphanedConnectors()
     std::set<LinkedObjects*> deletedLinks;
 
     auto deleteConnectors = [&deletedLinks](std::shared_ptr<ConnectorInfoReader> c) {
-        EngravingItem* conn = c->releaseConnector();
+        EngravingItem* conn = c ? c->releaseConnector() : nullptr;
+        if (!conn) {
+            return;
+        }
 
         LinkedObjects* links = conn->links();
         bool linksWillBeDeleted = links && links->size() == 1;
 
-        if (conn && !conn->isTuplet()) {     // tuplets are added to score even when not finished
+        if (!conn->isTuplet()) {     // tuplets are added to score even when not finished
             if (linksWillBeDeleted) {
                 deletedLinks.insert(links);
             }

src/engraving/rw/read410/readcontext.cpp

@@ -517,12 +517,15 @@ void ReadContext::clearOrphanedConnectors()
     std::set<LinkedObjects*> deletedLinks;
 
     auto deleteConnectors = [&deletedLinks](std::shared_ptr<ConnectorInfoReader> c) {
-        EngravingItem* conn = c->releaseConnector();
+        EngravingItem* conn = c ? c->releaseConnector() : nullptr;
+        if (!conn) {
+            return;
+        }
 
         LinkedObjects* links = conn->links();
         bool linksWillBeDeleted = links && links->size() == 1;
 
-        if (conn && !conn->isTuplet()) {     // tuplets are added to score even when not finished
+        if (!conn->isTuplet()) {     // tuplets are added to score even when not finished
             if (linksWillBeDeleted) {
                 deletedLinks.insert(links);
             }