diff --git a/src/if_lua.c b/src/if_lua.c
index 0ca81e3..d926f73 100644
--- a/src/if_lua.c
+++ b/src/if_lua.c
@@ -1517,7 +1517,7 @@
 	return 0;
     }
     luaV_totypval(L, -1, rettv);
-    return 1;
+    return 0;
 }
 
     static int
@@ -1548,7 +1548,7 @@
 	abort = set_ref_in_item(&tv, copyID, NULL, NULL);
     }
     lua_pushinteger(L, abort);
-    return 0;
+    return 1;
 }
 
     static int
diff --git a/src/version.c b/src/version.c
index f46f917..be1bee3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    621,
+/**/
     620,
 /**/
     619,