Close a hole in debug mode
Close a hole in debug mode

If we have routers in the work queue when we put them in debug mode,
skip any upcoming operations on them.

Change-Id: Idd6e92d3cb3c8e50a7b9807b5bad48c19d45511c

stackforge/akanda-rug,openstack/akanda-rug,dreamhost/akanda-rug,openstack/akanda-rug,markmcclain/astara,stackforge/akanda-rug