v6.13.0

• [propagate_anchors] Interpolate component anchors for brace (intermediate)
  layers when the component's glyph doesn't have a matching brace layer, by
  interpolating from the component's master sources (PR #1142, fixes #1017).
• [classes] Zero-pad unicode hex strings in the .glyphs v3 parser, so
  codepoints below U+1000 match GlyphData.xml's 4-digit keys for correct
  glyph category lookups (PR #1141).
• [tokens] Support 'value in property' predicate syntax (e.g. "abc" in tags),
  and 'between'/'in' comparators with aggregate expressions like
  {value, ...} (PR #1140).
• [tokens] Support the 'tags' glyph property in token filters (PR #1129).
• [classes] Cache glyph name and unicode index lookups in FontGlyphsProxy,
  making glyph-by-name access significantly faster for large fonts (PR #1139).
• [constants] Add missing KOR (Korean) and MOL (Moldovan) language mappings,
  and fix REVERSE_LANGUAGE_MAPPING to actually reverse keys and values
  (PR #1138, fixes #1112).
• [propagate_anchors] Fix ligature anchor numbering on synthesized bracket
  layers by falling back to the associated master's layer when the exact
  layerId lookup misses (PR #1137, fixes #1136).
• [smart_components] Fix smart components at default location not being
  decomposed, because an empty smartComponentValues dict short-circuited
  the check (PR #1135, fixes #1134).