5
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Inspired by this question Association's Attributes change between 10.3.1 & 10.4? I have been feeding a variety of strange expressions into Association.

WARNING MAY CAUSE KERNEL CRASH

Association[a -> Sequence[]]
(* <|a -> Sequence[]|> *)

Completes OK

Association[a -> Sequence[b]]
(* <|a -> Sequence[b]|> *)

Completes OK

Association[a -> Sequence[b, c]]
(* <|a -> Sequence[b, c]|> *)

Hangs until aborted or apparently completes but kills kernel

Association[a -> Sequence[b, c, d]]
(* <|a -> Sequence[b, c, d]|> *)

Apparently completes but kills kernel

$Version
(* "11.0.0 for Linux x86 (64-bit) (July 28, 2016)" *)

Or with similar results

$Version
(* "10.4.1 for Linux x86 (64-bit) (April 11, 2016)" *)

Do other people see this?

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  • $\begingroup$ Nope, no crash or hang on OS X M11.0.0. But that doesn't mean that there's no bug. Crash bugs have the nasty habit of not always triggering ... or sometimes causing very subtle problems. $\endgroup$ – Szabolcs Sep 6 '16 at 20:19
  • $\begingroup$ confirmed on 10.1/windows $\endgroup$ – george2079 Sep 6 '16 at 20:53
  • $\begingroup$ No problem either for me with OSX and mma 11.0.0. $\endgroup$ – SquareOne Sep 6 '16 at 21:39
  • $\begingroup$ No problem from 10.2 to 11.0 on Windows. $\endgroup$ – user31159 Sep 6 '16 at 22:55
  • $\begingroup$ No problem on widnows: "11.0.0 for Microsoft Windows (64-bit) (June 24, 2016)" $\endgroup$ – Vahagn Tumanyan Sep 7 '16 at 4:27

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