Date range picker display bug

[vadjs]

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Plunkr Case (Bug Reports)
Please fork the plunkr below and create a case demonstrating your bug report. Issues without a plunkr have much less possibility to be reviewed.

http://primefaces.org/primeng/#/calendar

Current behavior

When date range picked more than 1 current month appears display bug: several days in range are not highlighted.

Expected behavior

All days sould be highlighted.

Minimal reproduction of the problem with instructions

http://primefaces.org/primeng/#/calendar
Pick 1 aug 2017 as start of range, pick 30 sept as end of range. You will see that 30, 31 aug and 1 sept will be inactive.

What is the motivation / use case for changing the behavior?

Users now confusing by this bug. Stopping cunfusing users.

Please tell us about your environment:

• Angular version: 4.2.4

• PrimeNG version: 4.2.0

• Browser: all

• Language: all

• Node (for AoT issues): node --version =

[FergusZhou]

+1

[tylerwellss]

+1

[jdbuhl]

+1