eg:
<html> {{ if eq .FOO "bar" }} <some tags here> {{ end }} <other stuff> {{ if eq .BAZ "bim" }} <some tags here> {{ end }} </html>
Especially it looks like they have lots of edits where they add blank lines and then another tag, and then remove the new tag but not the blank line. E.g. https://github.com/thstsa/spacetourism/commit/6411ce05009cc6...
Or sometimes just replacing things they intend to outright remove with blank lines.
With multiple committers, it seems unlikely they're all templating and then checking in the output of the template engine.
{{- [...] -}}
{{ [...] | [n]indent X }}
eg:
That ends up generating blank lines all over the place, very much like the output they have. ;)