"gum spin" does not forward STDIN to the command

[occivink]

Is your feature request related to a problem? Please describe.
For example the following does not work as expected:
gum spin --show-output -- cat < some-file
echo "abc" | gum spin --show-output -- cat
Both commands have no output, even though one would expect to see respectively the content of some-file, and abc

Describe the solution you'd like
gum spin should forward the data received on stdin to the program being run.
Much like env does, for example with echo abc | env cat.

Describe alternatives you've considered
I can't an applicable alternative solution.

Additional context
N/A

[johnzzon]

I had this issue as well. It's because shell input redirection (the <) tries to apply to the whole command, so it redirects to gum. You need to do a subshell, like this:

gum spin --show-output -- sh -c "cat < some-file"

[caarlos0]

should be fixed on main, thanks!