Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the emacs-pretest-bug@gnu.org mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

I did M-x edit-abbrevs RET, and (possibly; can't remember) made some
changes in my abbrevs table; I then hit C-c C-c to save it, and got 

    Debugger entered--Lisp error: (cl-assertion-failed sym)
      signal(cl-assertion-failed (sym))
      clear-abbrev-table([0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...])
      kill-all-abbrevs()
      define-abbrevs(t)
      edit-abbrevs-redefine()
      edit-abbrevs-redefine-and-save()
      call-interactively(edit-abbrevs-redefine-and-save nil nil)

====================

Here's the abbrev table, as a compressed attachment (it's pretty big):