Unable to set later end date in range with confirm picker via input

[mburmistrov]

Version

2.6.2

Reproduction link

https://mengxiong10.github.io/vue2-datepicker/demo/index.html

Steps to reproduce

1. Go to the demo page.

2. Set date range in range picker with confirm (the last one).

3. Try to set later end date via input and confirm.

What is expected?

End date changes on confirm.

What is actually happening?

End date does not change.

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Issue reproduces only with later end date. Earlier end date is set with no problems.
Start date also can be changed via input in both directions with no problems.

[mengxiong10]

v2.6.3 fixed it.