v0.4.2 SpaczzRuler Bug Fixes

• Fixed a bug where TokenMatcher callbacks did nothing.
• Fixed a bug where spaczz_token_defaults in the SpaczzRuler did nothing.
• Fixed a bug where defaults would not be added to their respective matchers when loading from bytes/disk in the SpaczzRuler.
• Fixed some inconsistencies in the SpaczzRuler which will be particularly noticeable with ent_ids. See the "Known Issues" section below for more details.
• Small tweaks to spaczz custom attributes.
• Available fuzzy matching functions have changed in RapidFuzz and have changed in spaczz accordingly.
• Preparing for spaCy v3 updates.