Is this a bug in std.typecons.Tuple.slice?

[tsbockman via Digitalmars-d-learn]

On Saturday, 6 February 2016 at 06:34:05 UTC, Marco Leise wrote:
> [...]

I should also point out that, since there is no way to actually 
find out whether anyone is using the `ref`-ness of the return 
type in the wild, the approach that you and Saurabh Das are 
taking really ought to include changing the symbol name and 
deprecating the old one.

Otherwise you could introduce subtle bugs into previously valid 
code; not every significant effect of removing `ref` will cause 
an error message at compile time *or* run time - some will just 
silently change the behaviour of the program, which is awful.