Fixed Escape not working with bNoKnockback (#4353)

* Fixes #4344.
* Resolved Escape not letting the player backslide when wearing items that give bNoKnockback bonus.
Thanks to @Badarosk0!

src/map/skill.cpp

@@ -12338,7 +12338,7 @@ int skill_castend_pos2(struct block_list* src, int x, int y, uint16 skill_id, ui
 
 	case SC_ESCAPE:
 		skill_unitsetting(src, skill_id, skill_lv, x, y, 0);
-		skill_blown(src, src, skill_get_blewcount(skill_id, skill_lv), unit_getdir(src), BLOWN_NONE);
+		skill_blown(src, src, skill_get_blewcount(skill_id, skill_lv), unit_getdir(src), BLOWN_IGNORE_NO_KNOCKBACK); // Don't stop the caster from backsliding if special_state.no_knockback is active
 		clif_skill_nodamage(src,src,skill_id,skill_lv,1);
 		flag |= 1;
 		break;