To get better performance, we pre-load all nodealias/node information at the beginning of the segment loop.
It's possible that we receive a new node alias from the segment table what we are not fully aware of (yet).
The easiest solution is just ignoring. New risks/threats can be detected by a new execution cycle.
Change-Id: Ib54f7edc46eedbab6d13b4d651aaac1425994940