I am sorry that you're having this issue. However -- my opinion, is that title fields are not reliable. That is to say, they're not under enough control that you should rely on them for any given purpose.
Ultimately, node titles are essentially just keyword lists. They are what gets searched when one does a simple search. Anything aside from that, any rules we might try to impose (such as "OP") are just conventions and hacks. Even the "threadingness" of titles is not reliable.
I reckon we are the only monastery ever to have a dungeon
staffed with 16,000
zombies.