Hacker0x01/react-datepicker — pull request #25 by RSO (2014-07-08 00:23:18+00:00)
Title: Use strict date parsing when the input changes value

Found a bug where `2014--01` would convert to `2014-01-01` which made the input pretty much unusable, so I decided to turn on strict parsing. The date is now only selected if the date strictly matches `YYYY-MM-DD`