Revert "Clean the `backtrack_stack` so we don't backtrack to a place with cashed bad activations"
Revert "Clean the `backtrack_stack` so we don't backtrack to a place with cashed bad activations"

vojtechkral/cargo,tshepang/cargo,vojtechkral/cargo,eminence/cargo,tshepang/cargo,eminence/cargo,eminence/cargo,eminence/cargo,rust-lang/cargo,nipunn1313/cargo,rustyhorde/cargo,rust-lang/cargo,rust-lang/cargo,rustyhorde/cargo,tshepang/cargo,tsurai/cargo,rustyhorde/cargo,tsurai/cargo,tsurai/cargo,rust-lang/cargo,vojtechkral/cargo,nipunn1313/cargo,nipunn1313/cargo,tshepang/cargo,tsurai/cargo,tsurai/cargo,vojtechkral/cargo,rustyhorde/cargo,nipunn1313/cargo