bug(date): Ignore next when a full date provided instead of trying Next against the date

[HackingRepo]

Hi, uutils mainteners

we saw that when trying

relunsec@relunsec:~/software/coreutils/target/debug$ ./date  -d "Next Friday Sep 25 12:00:00 AM EDT 2026"
Fri Oct  2 12:00:00 AM EDT 2026
relunsec@relunsec:~/software/coreutils/target/debug$ gnudate  -d "Next Friday Sep 25 12:00:00 AM EDT 2026"
Fri Sep 25 12:00:00 AM EDT 2026
relunsec@relunsec:~/software/coreutils/target/debug$ 

same with

relunsec@relunsec:~/software/coreutils/target/debug$ ./date  -d "Next Sunday Sep 25 12:00:00 AM EDT 2026"
Sun Sep 27 12:00:00 AM EDT 2026
relunsec@relunsec:~/software/coreutils/target/debug$ gnudate  -d "Next Sunday Sep 25 12:00:00 AM EDT 2026"
Fri Sep 25 12:00:00 AM EDT 2026

[sylvestre]

oh, this is fun :)

I wonder if this should not be an error