The behavior is slightly changed from Twitter; for step 3 it now just silently completes the composition without any error, and for step 6 it still reproduces here. This is a widely known issue among Korean users, so reopening...
Bug 1576620 Comment 13 Edit History
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The behavior is slightly changed from Twitter; for step 3 it now just silently completes the composition without any error, and for step 6 it still reproduces here. This is still a widely known issue among Korean users, so reopening...