Fourth Release Candidate for SRE 5

Issues Fixed

• Fixes a number regression and OOM errors due to the new heuristic collapsing empty sup/super scripts and tighter packing of semantics into enriched mml expressions
• Fixes missing mathmlTree issue due to incorrectly collapsed empty super/sub scripts and similar
• Fixes issue with omitted colon in Euro Braille
• Adds overshoot guards and some more reachability tests for recursion during enrichment and rebuilt
• Adds a smoke test for publication

Full Changelog: v5.0.0-rc.3...v5.0.0-rc.4