So yes this code is responsible of it and it happens at some specific window to topic ratio height.
But what I fail to understand is, what is the expected behavior? I can just remove this check and it will work, but I guess we added this for a reason?
@eviltrout you made this initial feature FIX: If a topic is really long, show the timeline · discourse/discourse@79763a6 · GitHub
Is this not valid anymore? is the formula wrong? I think it’s triggering here when the topic is not actually so huge, so maybe we should fix this?
Also I discovered that all suggested topics was used in in this topic height computation ${"#topic").css("background", "red"):
Maybe this is what changed since you made it.