I was a little suprised to see a Question of mine about a MathJax error showing up in Related Links (for another meta.Math.SE question), because as I remembered it, it had been closed as duplicate.
This error no longer happens to me with any frequency, and I recall reading a comment or two that explained the problem as network lag at the time. But the "original" question to which mine was a duplicate appears to have been "Removed for reasons of moderation" (perhaps because the User who asked it has been removed).
I point this out as an odd case, not especially to have it reopened, but to ask about our process (if any) when Questions linked as "originals" (to some closed as duplicates) are deleted. I'm tagging for discussion because I'm uncertain it rises to the level of "feature request", but if there's a Community consensus, we could ask about automatic reopening of cases like this.
Is there a Data Explorer query that can find such cases?
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