Core/Spells: update the core to the changes from 1fb1988d46 . To make your custom code work with those changes simply lookup the value of Targets enum value from prev rev, and update the name in your code.

src/server/scripts/Spells/spell_warlock.cpp

@@ -220,7 +220,7 @@ class spell_warl_seed_of_corruption : public SpellScriptLoader
 
             void Register()
             {
-                OnUnitTargetSelect += SpellUnitTargetFn(spell_warl_seed_of_corruption_SpellScript::FilterTargets, EFFECT_0, TARGET_UNIT_AREA_ENEMY_DST);
+                OnUnitTargetSelect += SpellUnitTargetFn(spell_warl_seed_of_corruption_SpellScript::FilterTargets, EFFECT_0, TARGET_UNIT_DEST_AREA_ENEMY);
             }
         };