Parsoid appears to be adding a newline after templates that are followed by inline text. This has unfortunate results if the first character after the template is a space, as then the following text is rendered as if it were inside <pre></pre> tags.
Example:
https://en.wikipedia.org/w/index.php?diff=621410250
That example is an edit generated with [[User:Jackmcbarn/editProtectedHelper]], which uses Parsoid to deal with Wikitext. See https://en.wikipedia.org/w/index.php?diff=621243755 for an example of how the tool normally works.
This seems to be related to, but not quite the same as, bug 68862.
Version: unspecified
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=64901