md5sum exits when a directory is passed as argument

I am using the new coreutils on ubuntu 25.10
When running 'md5sum *' in a directory that has directories and files, md5sum exits when it encounters a directory without calculating the md5 of all files that follow.
The gnu version of md5sum is just printing a message and continues calculating checksums.

For example:

  /tmp/test 
❯ ls -al
total 12
drwxrwxr-x  3 user  120 Oct 15 13:53 .
drwxrwxrwt 52 root  1340 Oct 15 13:52 ..
-rw-rw-r--  1 user    9 Oct 15 13:52 file1
-rw-rw-r--  1 user    9 Oct 15 13:52 file2
drwxrwxr-x  2 user   40 Oct 15 13:52 test
-rw-rw-r--  1 user    8 Oct 15 13:53 ufile1

  /tmp/test 
❯ md5sum *
d23ad13e4add7dc2ed0a5cf26e4a3735  file1
ec3f5bae3241bca96a10696f2412bb7f  file2
md5sum: failed to read input: Is a directory

  /tmp/test
❯ gnumd5sum *
d23ad13e4add7dc2ed0a5cf26e4a3735  file1
ec3f5bae3241bca96a10696f2412bb7f  file2
gnumd5sum: test: Is a directory
ba24d6e16402dc864b85fc24069d1d09  ufile1

Reproduce the issue by running md5sum * in a directory containing regular files and a subdirectory, then compare the behavior with GNU md5sum. Trace the command's handling of directory input; done means it reports the directory error, continues processing later files, and produces their checksums.