fix creating selection range when endNode contains startNode (#526)

guardian / scribe

DEPRECATED: A rich text editor framework for the web platform

http://guardian.github.io/scribe/

Apache License 2.0

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Open sauerbraten opened 5 years ago

sauerbraten commented 5 years ago

fixes #526 by also checking that the endNode isn't an ancestor of startNode before reversing the selection range