v1.42.2

Fix

• Attributes containing ${...} inside a quoted value (e.g. JS template literals like :name="`x[${i}]`") respect max_attribute_length again and are spread over multiple lines - a regression in 1.40.6. Unquoted Mako-style ${...} expressions in tags are still left unformatted.
• A stray <!-- that is not a real HTML comment (for example inside a {# ... #} template comment or inside a <textarea>/<pre>) no longer swallows the rest of the document. This fixes false H025 orphan-tag reports and over-indentation of the tags that follow - a regression in 1.40.6.
• Handlebars triple-stache {{{ ... }}} and raw-block {{{{ ... }}}} expressions used as tag attributes are tokenized correctly again, fixing false H025 orphan-tag reports - a regression in 1.40.6.
• A quoted literal brace in an attribute value (e.g. data-x="{{") no longer makes the tokenizer scan into later content looking for a matching }}, which could collapse <pre>/<textarea> whitespace - a regression in 1.40.6.
• Spacing the }} of a handlebars {{#if}}/{{#each}} block-open tag is now idempotent; it no longer leaks a trailing space into the following {{...}} tag on later formatting passes.
• T038 no longer reports block tags that appear only inside a handlebars comment ({{!-- ... --}}, {{! ... }}) or inside a handlebars raw block ({{{{raw}}}} ... {{{{/raw}}}}).
• T039 no longer reports handlebars raw-block delimiters ({{{{raw}}}} / {{{{/raw}}}}) as unclosed template tags.
• Malformed tag attributes that the attribute parser cannot fully parse (e.g. a stray < or dangling =) are now left untouched instead of having the unparsable characters silently dropped when attributes are wrapped.
• A < used as a less-than operator inside a template expression in text or <script> content (e.g. ${a<b}, {{a<b}}) is no longer mistaken for an HTML tag start, which could merge or drop following content and break idempotency - a regression in 1.40.6.
• Unquoted attribute values containing : or / (e.g. href=https://example.com/page) are no longer split into a truncated value plus a bogus standalone attribute when attributes are wrapped - a regression in 1.40.6.
• A nameless ="value" attribute is no longer rewritten with the literal attribute name None; malformed attributes are left untouched.
• Trailing whitespace inside an indented <textarea>/<pre> is preserved instead of being collapsed by whitespace cleanup (it is verbatim content).

Performance

• Detecting ignored/verbatim blocks ({% comment %}, {% blocktrans %}, {% filter %}, <pre>, <script>, etc.) is dramatically faster on templates with many {% ... %} tags. A lazy [ ]*? before the block keywords caused pathological backtracking; the equivalent greedy [ ]* removes it, cutting reformat time on large template-heavy files by roughly 5x.