On Tue, 28 Nov 2017 15:35:21 +0100, Johannes Schindelin wrote:
> On Tue, 28 Nov 2017, Łukasz Stelmach wrote:

> > With encoding on the file descriptor set to "binary" Tcl (8.6 in my
> > case) does double conversion which breaks e.g. author name in amended
> > commits.
>
> Is the problem in question occurring when a commit message contains
> non-ASCII characters encoded in UTF-8 and you click the "Amend Last
> Commit" radio button on the right side above the "Commit Message" text
> box?

No, only with the author data. That means there is a difference in how
Tcl handles input in with "read" (the message) and "gets" (headers
including the author header).

Indeed! A few lines below the message is converted from utf-8 and author
is not. So the right thing to do is to convert author too and not change
the file descriptor settings.

I am going back to the drawing board. Thanks. 

-- 
Było mi bardzo miło.                                  --- Rurku. --- ...
>Łukasz<                                --- To dobrze, że mnie słuchasz.