"WARNING: Unexpected RefCount > 0 (X)" when closing explorer with File > Close menu

reactos-bootcd-0.4.16-dev-254-g30b4024-x86-gcc-lin-dbg

• Open Explorer
• Use File > Close menu
• Logs says : 

shellbrowser.cpp:3699: WARNING: Unexpected RefCount > 0 (2) 

• Similar to CORE-19780
• (2) could be (3) depeding on wether it's
  • "My Computer" from Desktop : (2)
  • "My Documents" from Desktop : (3)
  • "My Network" from Desktop : (2)
  • "C:\" from Start>Run : (3)
• Closing with top right X does NOT lead to this