[1.12] Dangerous alternative prefix

I recently switched to using the registry event, for my blocks and items. This is working fine, but I noticed that I am getting a 'Dangerous alternative prefix' warning when running my mod with virtually any other mod.
I'm no expert, but it seems like, when another mod registers items, etc, the event fires and my mod is registering content in the middle of the other mod. I say this because:

Dangerous alternative prefix `dungeontactics` for name `dungeonpedia`, expected `forestry` invalid registry invocation/invalid name?

This seems to indicate that forge is expecting, in this case, a registry from forestry, but is getting mine instead.

I have been told that this is just a warning and I don't need to worry about it, but I was wondering if there is anything I can do about it - preferably prevent what is causing the warning, not just hide it from the log.