answer=42 - possibly....
The thread you quote says the amount of water that can accumulate is quite substantial.
Against - there was a limited time window for it to accumulate after the inspection.
For - water scavenge is of doubtful effectiveness below freezing.
Any accumulated 'water' could all appear at once as the empty centre tank thawed out during the descent, and be scavenged through the still frozen main tanks to be fed to the two 'independent' engine systems as ice 'droplets'.