guix system reconfigure fails

[Abraham Jose <abraham.juegos1237@gmail.com>]

Whle upgrading my system i did the generic "guix pull" and then "sudo guix
system reconfingure /etc/config.csm", but when doing the reconfiguration it
was taking WAY more than usual so i cancelled it and reran it again (this
time with --debug=4) and noticed that the output was this over and over:

acquiring write lock on `/var/guix/temproots/13970'
downgrading to read lock on `/var/guix/temproots/13970'

Then it failed giving the following backtrace:
Backtrace:
          19 (primitive-load "/home/user/.config/guix/current/bin…")
In guix/ui.scm:
  2115:12 18 (run-guix-command _ . _)
In ice-9/boot-9.scm:
  1736:10 17 (with-exception-handler _ _ #:unwind? _ # _)
  1731:15 16 (with-exception-handler #<procedure 7f3f9674e090 at ic…> …)
In guix/scripts/system.scm:
   1315:8 15 (_)
In guix/status.scm:
    776:4 14 (call-with-status-report _ _)
In guix/scripts/system.scm:
   1149:4 13 (_)
In ice-9/boot-9.scm:
  1736:10 12 (with-exception-handler _ _ #:unwind? _ # _)
In guix/store.scm:
   631:37 11 (thunk)
   1300:8 10 (call-with-build-handler #<procedure 7f3fa1089c90 at g…> …)
  2042:24  9 (run-with-store #<store-connection 256.99 7f3f94bb6640> …)
In guix/scripts/system.scm:
  1171:15  8 (_ _)
    789:4  7 (perform-action reconfigure #<<operating-system> kerne…> …)
In guix/scripts/system/reconfigure.scm:
    322:2  6 (check-forward-update _ #:current-channels _)
In srfi/srfi-1.scm:
   691:23  5 (filter-map #<procedure 7f3f9c8cb200 at guix/scripts…> . #)
In guix/scripts/system/reconfigure.scm:
   329:37  4 (_ #<<channel> name: guix url: "https://git.savannah.gn…>)
In guix/git.scm:
   337:13  3 (update-cached-checkout _ #:ref _ #:recursive? _ # _ # _ …)
In git/bindings.scm:
     77:2  2 (raise-git-error _)
In ice-9/boot-9.scm:
  1669:16  1 (raise-exception _ #:continuable? _)
  1669:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1669:16: In procedure raise-exception:
Git error: SSL error: received early EOF