$.extend copies by reference, even with deep=true (patch)

[fortes]

a = { arr: [1, 2, 3] }

b = $.extend(true, {}, a)

b.arr.pop()

Should be false, but is true

a.arr === b.arr

[fortes]

With real formatting:

a = { arr: [1, 2, 3] }
b = $.extend(true, {}, a)
b.arr.pop()

// Should be false, but is true
a.arr === b.arr

[fortes]

GitHub commit:  http://github.com/fortes/jquery/commit/4b7aad76158e64ab347ff946c0d924765b4e947c

[fortes]

I shouldn't continue to code on low sleep, but here's a more compact version (ignore the attached patch):  http://github.com/fortes/jquery/commit/8c77139415ba86024b545dde326e9fee9b06fb4c

[john]

Landed.  http://github.com/jquery/jquery/commit/0d1a2c1b1145ad17bec061a231b8426b3424d144