p-inputMask not updating

[ghost]

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Plunkr Case demonstrating buggy behavior:
http://plnkr.co/edit/RtXeArlvLaLE3GCr3r6y?p=preview

Current behavior
When I exchange the two-way bound model variable of a p-inputmask's value from a defined value to undefined the component's value is not updated. Possilby related, the initial value isn't shown either.

Expected behavior
When the value of a p-inputmask becomes undefined the component should update and show the mask for an empty field.
This bug is a regression from primeng version 1.1.0->1.1.4
Use the provided plunkr to verify correct behavior in primeng 1.1.0

Minimal reproduction of the problem with instructions
See plunkr above, or:
Create a p-inputmask with a two-way bound value. Set the value to something matching the mask, and then programmatically change it to undefined.

Possible fix:
this commit f992187a5ee2f45d8dab44816634dbba5a150a50 moved "this.checkVal()" into the else block. Moving it behind should fix this issue, although i can't tell if that breaks the animation the commit fixed.

Please tell us about your environment:

• Angular version: 2.4.3
• PrimeNG version: 1.1.4
• Browser: Chrome 55.0.2883.87 m (64-bit) | Firefox 45.6.0
• Language: TypeScript 2.0.8

[rafaelodon]

The problem is still occuring in 2.0.2. I believe the "this.checkVal();" line was mistakenly moved to inside an "else" block.