Jason Simmons 4d1f1f6d8a Do not call restartInput twice when setting a new text input client. (#3808)
If restartInput is called twice in quick succession, then the IME may output
warnings related to usage of the obsolete connection resulting from the first
call.

Fixes https://github.com/flutter/flutter/issues/10730
2017-06-21 10:47:02 -07:00
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