[Issue 22785] joiner does not support range over immutable

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22785

Dlang Bot <dlang-bot at dlang.rocks> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Dlang Bot <dlang-bot at dlang.rocks> ---
dlang/phobos pull request #8737 "Fix issue 22785: `joiner` should `Unqual`
child ranges." was merged into master:

- 04ac328ad03744f36870d81ef06a08863dafd7db by Mathis Beer:
  Fix issue 22785: `joiner` should `Unqual` child ranges.
  This allows use with `immutable T[][]` and similar.

https://github.com/dlang/phobos/pull/8737

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