Better handling of dangling markers during bus unfold.

eeschema/sch_bus_entry.h

@@ -43,6 +43,8 @@ public:
     bool IsDanglingStart() const { return m_isDanglingStart; }
     bool IsDanglingEnd() const { return m_isDanglingEnd; }
 
+    void SetEndDangling( bool aDanglingState ) { m_isDanglingEnd = aDanglingState; }
+
     // Do not create a copy constructor.  The one generated by the compiler is adequate.
 
     ~SCH_BUS_ENTRY_BASE() { }

eeschema/tools/sch_line_wire_bus_tool.cpp

@@ -375,6 +375,7 @@ int SCH_LINE_WIRE_BUS_TOOL::UnfoldBus( const TOOL_EVENT& aEvent )
 SCH_LINE* SCH_LINE_WIRE_BUS_TOOL::doUnfoldBus( const wxString& aNet, const VECTOR2I& aPos )
 {
     SCHEMATIC_SETTINGS& cfg = getModel<SCHEMATIC>()->Settings();
+    SCH_SCREEN*         screen = m_frame->GetScreen();
 
     VECTOR2I pos = aPos;
 
@@ -384,7 +385,7 @@ SCH_LINE* SCH_LINE_WIRE_BUS_TOOL::doUnfoldBus( const wxString& aNet, const VECTO
     m_toolMgr->RunAction( EE_ACTIONS::clearSelection );
 
     m_busUnfold.entry = new SCH_BUS_WIRE_ENTRY( pos );
-    m_busUnfold.entry->SetParent( m_frame->GetScreen() );
+    m_busUnfold.entry->SetParent( screen );
     m_frame->AddToScreen( m_busUnfold.entry, m_frame->GetScreen() );
 
     m_busUnfold.label = new SCH_LABEL( m_busUnfold.entry->GetEnd(), aNet );
@@ -399,6 +400,15 @@ SCH_LINE* SCH_LINE_WIRE_BUS_TOOL::doUnfoldBus( const wxString& aNet, const VECTO
 
     getViewControls()->SetCrossHairCursorPosition( m_busUnfold.entry->GetEnd(), false );
 
+    std::vector<DANGLING_END_ITEM> endPoints;
+
+    for( SCH_ITEM* item : screen->Items().Overlapping( m_busUnfold.entry->GetBoundingBox() ) )
+        item->GetEndPoints( endPoints );
+
+    m_busUnfold.entry->UpdateDanglingState( endPoints );
+    m_busUnfold.entry->SetEndDangling( false );
+    m_busUnfold.label->SetIsDangling( false );
+
     return startSegments( LAYER_WIRE, m_busUnfold.entry->GetEnd() );
 }