RSS Feed/News [Bug / UX] Smilie import shows misleading error when emoji cannot be stored due to fullUnicode being disabled

[ENXF NET]

When fullUnicode is disabled in config.php, the database uses utf8 (3-byte) instead of utf8mb4 (4-byte), which cannot store emoji characters. When a smilie with an emoji replacement is imported, the emoji is silently stripped by the database layer, and the smilie validator then shows:

Please enter a valid emoji short-name or image URL.
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This error is misleading. The field was filled correctly, but the emoji was lost before validation could see it...

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