v0.8.4

What's Changed

• improve nwd and name loading by @PythonFZ in #893
• check and test for InvalidStageName in group by @PythonFZ in #894
• change ALWAYS_CACHE=True default by @PythonFZ in #891
• bump version by @PythonFZ in #895

Full Changelog: v0.8.3...v0.8.4