7.1.7

• fix: lossless: true preserves trailing whitespace in a selector that ends empty, such as :not(a, ). Note that :not( ) now yields a selector holding one empty string node rather than an empty selector (#337 by @theRizwan)
• fix: consume the whitespace that terminates a hexadecimal escape, so [x="\000061 b"] unescapes to ab (#340 by @jakezwang)
• fix: set the parent on every node passed to insertBefore and insertAfter, not only the first (#343 by @feritcemkahraman)
• fix: assigning combinator.value clears the stale raw spelling instead of being ignored (#342 by @SAY-5)
• fix: keep whitespace around the namespace separator in attribute selectors, so [ foo | bar ] round-trips (#339 by @dkryaklin)