In some YAML files over about a kilobyte, a mapping that follows comment lines
lost its highlighting from the second comment to the end of the mapping. The
YAML parser (@lezer/yaml with @lezer/lr) can give that mapping node an inverted
range when it falls on a tree buffer boundary (1024 entries by default), and
highlighting skips the whole node. The YAML mode now parses into buffers of
65536 entries, so ordinary YAML files stay in one buffer and never hit the
boundary.
Refs #809
l0ng-ai
ac436160b5