User "Nikerabbit" posted a comment on MediaWiki.r98578.
Full URL: http://www.mediawiki.org/wiki/Special:Code/MediaWiki/98578#c23753
Commit summary:
* (bug 12130) Initial newlines are now preserved correctly during editing
HTML browsers strip the first newline from the literal contents of a
<textarea>, but keep any additional newlines beyond that.
Prepending an extra newline in Html::textarea() when the contained text started
with a newline makes our output basically look like this:
<textarea> <-- (this added newline is ignored)
<-- (any original newline here is preserved)
blah blah</textarea>
This seems to consistently resolve the stripping of single initial newlines
from every edit operation as seen on bug 12130; as noted on comments there
<https://bugzilla.wikimedia.org/show_bug.cgi?id=12130#c17> this had deleterious
effects on Wikisource, where transcription/proofreading tends to involve
breaking up lots of little pages, which may have a significant newline at the
start of a page boundary.
Text that didn't have initial newlines won't see any difference in the HTML
output.
Followup to test cases in r98576, which confirm that supported browsers
consistently have this behavior.
Comment:
Already did (see the followups), but even if it is set to null, it should
either explode or degrade gracefully, not do unexpected things.
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