[Issue 19313] Attaching external thread may result in segfault

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19313

johanengelen at weka.io changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |johanengelen at weka.io
         Resolution|---                         |FIXED

--- Comment #1 from johanengelen at weka.io ---
fixed by
https://github.com/dlang/druntime/commit/42b4e0a9614ac794d4549ed5b2455fd0f805e123#diff-6615611ba51118215a271e3500c61122

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