Describe the bypass and how to replicate it
When the player hits an entity, the simulation doesn't covers sprint being set to false, which causes keepsprint to bypass.
Grim version
2.3.45
Server version
git-PaperSpigot-445 (MC: 1.8.8)
Plugins
Citzens, FastAssyncWorldEdit, PlayerCrasher, System, TChat, AdvancedBan, IPAuth, ViaVersion, LuckPerms, SkinsRestorer, WorldEdit, GrimAC, LPX.