Subject: bug#30788: 27.0.50; Getting 'char-displayable-p: Invalid hash table rehash size: 1.0' when starting emacs -Q

From: Ulrich Mueller <[email-masked]>
Date: Tue, 13 Mar 2018 20:07:20 +0100

> Note that the error occurs with LC_ALL=de_DE.UTF-8, whereas with
> LC_ALL=C or even LC_ALL=en_US.UTF-8 all seems to be fine.

More specifically, the problem seems to be triggered by the LC_NUMERIC
setting.