The following wikitext:
<blockquote>[[{{{1}}}]]</blockquote>abcdefgh
round-trips to this:
<blockquote>[[{{{1}}}]]</blockquote>ababcdefgh
The "a" and the "b" are somehow being doubled.
If a newline is present after the blockquote, then this:
<blockquote>[[{{{1}}}]]</blockquote>
abcdefgh
becomes this:
<blockquote>[[{{{1}}}]]</blockquote>
a
cdefgh
Now, the "b" is changed to a second newline.
Version: unspecified
Severity: major