- fixed crash on loading linedefs

src/p_xlat.cpp

@@ -62,7 +62,6 @@ void P_TranslateLineDef (line_t *ld, maplinedef_t *mld, int lineindexforid)
 	short tag = mld->tag;
 	uint32_t flags =mld->flags;
 	INTBOOL passthrough = 0;
-	auto Level = ld->GetLevel();
 
 	uint32_t flags1 = flags;
 	uint32_t newflags = 0;
@@ -103,6 +102,7 @@ void P_TranslateLineDef (line_t *ld, maplinedef_t *mld, int lineindexforid)
 		// line also needs to have its ID set to the same as its tag.
 		// An external conversion program would need to do this more
 		// intelligently.
+		auto Level = ld->GetLevel();
 		Level->tagManager.AddLineID(lineindexforid, tag);
 	}
 
@@ -499,4 +499,4 @@ const int* (*XlatExprEval[XEXP_COUNT])(int *dest, const int *xnode, FXlatExprSta
 	Expr_Or,
 	Expr_Xor,
 	Expr_Neg
-};
+};