v1.44.1

Fix

• Formatting no longer changes what the page renders. A space that shows was dropped (<span>a</span><span> b </span> rendered as ab, a{% if x %} b {% endif %}c as abc), a space that shows nothing was added (<span> </span> became <span> </span>), and moving a tag onto its own line could add one (x<img>y, or across a comment as in a{# c #}<img>). Whitespace is now kept where it renders and dropped where it does not.
• A line break inside an attribute value is kept, so a title tooltip no longer loses a line and a data- value read by script no longer comes back different. Line breaks in class, style, srcset and sizes mean nothing and are still joined.
• Indentation inside <pre> and <textarea> is left alone when the closing tag has something after it on its line (<pre> a\n b</pre> tail).
• Whitespace css does not collapse, such as U+2005, is text, and is no longer stripped from the edges of an element or of the file.
• Two indenting fixes: a line that closes one tag and opens another (</b><i>) indents its contents again, and a line that closes more tags than it opens unindents even when a whole tag ends it (</b><small></small>). Both left the lines after them at the wrong level.
• --line-break-after-multiline-tag now applies only to tags actually written over several lines, as its help says. It was holding back the content of every element, splitting tags that fit on one line.
• A class value is tidied wherever it was written: class=" a b " becomes class="a b". A tag whose attribute value holds a line break is spread over lines, since it cannot fit on one.