How to work around the infamous dual-context when using delegates together with std.parallelism

[CandG]

On Thursday, 27 May 2021 at 14:44:29 UTC, Steven Schveighoffer 
wrote:
> On 5/27/21 10:13 AM, Christian Köstlin wrote:
>> P.S.: I still do not get how to post formatted snippets with 
>> thunderbird to the newsgroup/forum :/
>
> It's not possible currently.

I no longer use thunderbird, but:
  - 
https://github.com/CyberShadow/DFeed/commit/2e60edab2aedd173c7ea3712cb9500d90d4b795d#diff-0ecfc518dcbf670fdac54985dd56663a16a0806fd57a05ac09bf40a933b851e5R338
  - IIRC thunderbird allows changing headers: try adding 
"Content-Type" to the comma-separated list 
"mail.compose.other.header"
  - Then in the composition window make sure Content-Type is set 
to something like "text/plain; markup=markdown"