1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/tests/js1_8_5/extensions/regress-627984-4.js b/js/src/tests/js1_8_5/extensions/regress-627984-4.js
new file mode 100644
index 000000000..bbc017ffb
--- /dev/null
+++ b/js/src/tests/js1_8_5/extensions/regress-627984-4.js
@@ -0,0 +1,15 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/licenses/publicdomain/
+
+// See bug 627984, comment 17, item 3.
+var obj = {};
+obj.watch("m", function (id, oldval, newval) {
+        delete obj.m;
+        obj.m = function () {};
+        return newval;
+    });
+delete obj.m;
+obj.m = 1;
+assertEq(obj.m, 1);
+
+reportCompare(0, 0, 'ok');