Inconsistent results between multiple new cache notifiers (digest)

Question

So lets start off with the new cache notifiers are great.  The digest mode is what I use.

So why this post?  I have two notifiers set up one for Texas, and one for "Texas, Oklahoma, Arkansas, and Louisianna"..  My expectation is that the Texas one would always have fewer than the bigger one. And than anything in the Texas one would show up in the bigger one. The bigger land area has one has Texas caches listed, but the two never seem to have the same same cache.  It appears either in one or the other.

Is this the expected behavior? Are the few Texas ones I see coming through the results that the emails are generated at different times?

My plan is to disable the Texas one and see what happens. My concern is that I lose notifications.

Answer 1

I know that caches will only appear in one notification email if there are multiple overlapping notifications. I'm not sure how it is determined which one, though.