Fixed a bug where merging paths with completely same root (lengths may differ) won't work.
Fixed a bug where merging paths with completely same root (lengths may differ) won't work.

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