The Sunqua Peak patch released on 2020-09-15 shifted fractals around
(notably moving the old CMs to 98 & 99), which messed with the boss
health in those fractals. As a result, the Skorvald CM detection (which
relied on the health of Skorvald being higher in CM) was broken.
This patch introduces a fallback mechanism which relies on the
split-phase anomalies, as those are still different in the CM. It should
be 100% accurate, as long as players actually make it to the split
phase. Before that, we currently have to assume that the fight is
non-CM, even if it's a log from a CM wiping before first split phase.
There is some discussion in the Elite-Insights Discord here[1] about
this change.
[1]: https://discordapp.com/channels/456611641526845473/718866714527399976/755914037354692648