Overspaced four-part rules like this one:
margin: 1px 4em 0 2px;
(that's two spaces, a tab, and four spaces)
get their whitespace collapsed to single spaces when flipped:
margin: 1px 2px 0 4em;
Overspaced four-part color rules like this one:
order-color: red yellow blue green;
aren't even flipped at all.
See attachments for testcase, expected output and actual output.
The attached patch fixes both issues: it changes the regex for detecting four-part color rules to allow multiple whitespace characters between colors, and preserves whitespace when swapping both kinds of four-part rules.
