Director: fix the issue that deprioritized paths are never reused later.
Director: fix the issue that deprioritized paths are never reused later.

chubbymaggie/angr,angr/angr,schieb/angr,chubbymaggie/angr,axt/angr,f-prettyland/angr,iamahuman/angr,axt/angr,f-prettyland/angr,angr/angr,tyb0807/angr,axt/angr,iamahuman/angr,schieb/angr,schieb/angr,angr/angr,chubbymaggie/angr,tyb0807/angr,tyb0807/angr,f-prettyland/angr,iamahuman/angr