Your bug report

#37423: Changing the login service from GDM to SLiM and then back to GDM causes a really bad loop

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 37423@debbugs.gnu.org.

-- 
37423: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=37423
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