Ideographic space is ignored after <!--more-->

support
1

Because I am Japanese, it’s common to do indentation with , U+3000: IDEOGRAPHIC SPACE.
It is treated as “normal character” in most cases, but after <!--more--> tag it is stripped or ignored.

+++
title = 'ポラーノの広場'
date = '2026-06-14T10:30:10+09:00'
+++

 十八等官でしたから役所のなかでも、ずうっと下の方でしたし俸給もほんのわずかでしたが、受持ちが標本の採集や整理で生れ付き好きなことでしたから、わたくしは毎日ずいぶん愉快にはたらきました。

<!--more-->

 あのイーハトーヴォのすきとおった風、夏でも底に冷たさをもつ青いそら、うつくしい森で飾られたモリーオ市、郊外のぎらぎらひかる草の波。

 またそのなかでいっしょになったたくさんのひとたち、ファゼーロとロザーロ、羊飼のミーロや、顔の赤いこどもたち、

When above content is parsed with below template,

{{ define "main" }}
  <h1>{{ .Title }}</h1>

  {{ $dateMachine := .Date | time.Format "2006-01-02T15:04:05-07:00" }}
  {{ $dateHuman := .Date | time.Format ":date_long" }}
  <time datetime="{{ $dateMachine }}">{{ $dateHuman }}</time>

  {{ .Content }}
  {{ partial "terms.html" (dict "taxonomy" "tags" "page" .) }}
{{ end }}

the result is below.

<p> 十八等官でしたから役所のなかでも、ずうっと下の方でしたし俸給もほんのわずかでしたが、受持ちが標本の採集や整理で生れ付き好きなことでしたから、わたくしは毎日ずいぶん愉快にはたらきました。</p>
<p>あのイーハトーヴォのすきとおった風、夏でも底に冷たさをもつ青いそら、うつくしい森で飾られたモリーオ市、郊外のぎらぎらひかる草の波。</p>
<!-- want above p to start with " あ" -->
<p> またそのなかでいっしょになったたくさんのひとたち、ファゼーロとロザーロ、羊飼のミーロや、顔の赤いこどもたち、</p>
<!-- this p starts with " ま" -->

Without <!--more--> , all ideographic spaces including the very first of content one is rendered.
I already know leading whitespace will be spritted in Markdown rendering, but in this problem renderer’s behavior is not consistent.

How can I prevent ignoring ideographic space after <!--more-->?

2

You are minifying somewhere and your ideographic space is a space. It gets trimmed when something is cleaned up (probably when Hugo tries to get summary and content). That is a blackbox assumption of similar issues with other space characters in SEA languages I had.

Option 1: don’t minify or configure minification to ignore specific characters (your space). Probably not an option depending on who/what/where minifies and removes your character

Option 2: a shortcode: Add a file to layouts/_shortcodes/ideographic-space.html that contains ONLY your character. Then reference it in your content with {{< ideographic-space >}}. That is slightly overkill, but should solve the issue.

Option 2 makes only sense if that really is an issue with trimmed whitespaces on content.

Edit to add: That shortcode should be used only for the first character in your content, if it’s a space. The other spaces should be accepted properly or we are in bug-territory here.