Could it be some kind of a race? When originally tried with my complete config I had different results with and without (require 'easy-mmode) before killing scratch buffer. Probably you can try with this line as well? Also I noticed that if you press q in this case emacs just kills this opened buffer. So probably emacs is in some mode in this case - can I check it somehow?
It is a plain emacs built with nixos. These packages are just different versions of emacs, like stable/unstable/master and with or without native compilation/pgtk. Also it contains all elpa/melpa packages and functions to install them in nixos.
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С уважением, Курневский Евгений.
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С уважением, Курневский Евгений.