Various other drags could crash Mac debug build if you option-W. Fixed too...

... And I think this fix is now exhaustive.

src/Project.cpp

@@ -1078,6 +1078,10 @@ AudacityProject::AudacityProject(wxWindow * parent, wxWindowID id,
 
 AudacityProject::~AudacityProject()
 {
+   // Tool manager gives us capture sometimes
+   if(HasCapture())
+      ReleaseMouse();
+
    if (wxGetApp().GetRecentFiles())
    {
       wxGetApp().GetRecentFiles()->RemoveMenu(mRecentFilesMenu);

src/toolbars/ToolBar.cpp

@@ -112,6 +112,8 @@ ToolBarResizer::ToolBarResizer(ToolBar *bar)
 
 ToolBarResizer::~ToolBarResizer()
 {
+   if(HasCapture())
+      ReleaseMouse();
 }
 
 /*

src/toolbars/ToolManager.cpp

@@ -155,6 +155,12 @@ class ToolFrame final : public wxFrame
       }
    }
 
+   ~ToolFrame()
+   {
+      if(HasCapture())
+         ReleaseMouse();
+   }
+
    //
    // Transition a toolbar from float to dragging
    //

src/widgets/AButton.cpp

@@ -187,6 +187,8 @@ AButton::AButton(wxWindow * parent,
 
 AButton::~AButton()
 {
+   if(HasCapture())
+      ReleaseMouse();
 }
 
 void AButton::Init(wxWindow * parent,