merge revision(s) 647390308239fbf82d159ecd83ed8df090af518d: [Backport #18257]
[Bug #18257] Register the class path of FrozenCore to mark ICLASS does not have the path usually, so it needs to be registered separately.
merge revision(s) 647390308239fbf82d159ecd83ed8df090af518d: [Backport #18257]