$ keepass 
SendMessage (25165862, 0x101f, (nil), (nil))
SendMessage (0, 0x1203, (nil), 0x7fff692c8570)
SendMessage (0, 0x1204, (nil), 0x7fff692c8570)
SendMessage (0, 0x1203, 0x1, 0x7fff692c8570)
SendMessage (0, 0x1204, 0x1, 0x7fff692c8570)
SendMessage (0, 0x1203, 0x2, 0x7fff692c8570)
SendMessage (0, 0x1204, 0x2, 0x7fff692c8570)
SendMessage (0, 0x1203, 0x3, 0x7fff692c8570)
SendMessage (0, 0x1204, 0x3, 0x7fff692c8570)
SendMessage (0, 0x1203, 0x4, 0x7fff692c8570)
SendMessage (0, 0x1204, 0x4, 0x7fff692c8570)
SendMessage (25165862, 0x101f, (nil), (nil))
SendMessage (0, 0x1203, (nil), 0x7fff692c9880)
SendMessage (0, 0x1204, (nil), 0x7fff692c9880)
SendMessage (0, 0x1203, 0x1, 0x7fff692c9880)
SendMessage (0, 0x1204, 0x1, 0x7fff692c9880)
SendMessage (0, 0x1203, 0x2, 0x7fff692c9880)
SendMessage (0, 0x1204, 0x2, 0x7fff692c9880)
SendMessage (0, 0x1203, 0x3, 0x7fff692c9880)
SendMessage (0, 0x1204, 0x3, 0x7fff692c9880)
SendMessage (0, 0x1203, 0x4, 0x7fff692c9880)
SendMessage (0, 0x1204, 0x4, 0x7fff692c9880)

Unhandled Exception:
System.ObjectDisposedException: The object was used after being disposed.
  at System.Net.Sockets.Socket.Send (System.Byte[] buf) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.XplatUIX11.WakeupMain () [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.XplatUIX11.SendAsyncMethod (System.Windows.Forms.AsyncMethodData method) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.XplatUIX11.SendMessage (IntPtr hwnd, Msg message, IntPtr wParam, IntPtr lParam) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.XplatUIX11.SetWindowPos (IntPtr handle, Int32 x, Int32 y, Int32 width, Int32 height) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.XplatUI.SetWindowPos (IntPtr handle, Int32 x, Int32 y, Int32 width, Int32 height) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control.SetBoundsCoreInternal (Int32 x, Int32 y, Int32 width, Int32 height, BoundsSpecified specified) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control.SetBoundsCore (Int32 x, Int32 y, Int32 width, Int32 height, BoundsSpecified specified) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.ToolStrip.SetBoundsCore (Int32 x, Int32 y, Int32 width, Int32 height, BoundsSpecified specified) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.ToolStripDropDown.SetBoundsCore (Int32 x, Int32 y, Int32 width, Int32 height, BoundsSpecified specified) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control.SetBoundsInternal (Int32 x, Int32 y, Int32 width, Int32 height, BoundsSpecified specified) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control.SetBounds (Int32 x, Int32 y, Int32 width, Int32 height, BoundsSpecified specified) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control.set_Size (Size value) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.ToolStripDropDownMenu.OnLayout (System.Windows.Forms.LayoutEventArgs e) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control.PerformLayout (System.Windows.Forms.Control affectedControl, System.String affectedProperty) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.Control.PerformLayout () [0x00000] in <filename unknown>:0 
  at (wrapper remoting-invoke-with-check) System.Windows.Forms.Control:PerformLayout ()
  at System.Windows.Forms.ToolStripItem.OnParentChanged (System.Windows.Forms.ToolStrip oldParent, System.Windows.Forms.ToolStrip newParent) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.ToolStripItem.set_Parent (System.Windows.Forms.ToolStrip value) [0x00000] in <filename unknown>:0 
  at (wrapper remoting-invoke-with-check) System.Windows.Forms.ToolStripItem:set_Parent (System.Windows.Forms.ToolStrip)
  at System.Windows.Forms.ToolStripItemCollection.Remove (System.Windows.Forms.ToolStripItem value) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.ToolStripItem.Dispose (Boolean disposing) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.ToolStripDropDownItem.Dispose (Boolean disposing) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.ToolStripMenuItem.Dispose (Boolean disposing) [0x00000] in <filename unknown>:0 
  at System.ComponentModel.Component.Finalize () [0x00000] in <filename unknown>:0