IS_SOURCE_OF_CYCLE
This flag is set when a bundle tree is redirected to an equivalent ancestor bundle tree. The current bundle tree's LATEST_BACKWARD_JUMP is set directly to the target of the cycle when this flag is set.
This flag is set when a bundle tree is redirected to an equivalent ancestor bundle tree. The current bundle tree's LATEST_BACKWARD_JUMP is set directly to the target of the cycle when this flag is set.