Throwing creeper eggs at walls/ceilings - still an issue

My past report was marked as "fixed", but this is still an issue. If you throw a creeper egg at a wall/ceiling, it does not spawn a creeper and gives you the egg back. This makes it difficult if not impossible to use them to throw at spawners. If the fix is waiting to be tested, please let me know. If it's been decided to leave this as-is to avoid potential glitch-raiding issues, let us know.