Progress Spinner initialization bug

[bOOm-X]

Bug, feature request, or proposal:

Bug

What is the expected behavior?

No "visual glitch" at the progress spinner initialization

What is the current behavior?

During a short period of time (1 second) the value attribute of the progress spinner is ignored and, the spinner start from almost "full" and go "back" to the correct initial value

What are the steps to reproduce?

https://plnkr.co/edit/vSTe3nqLuA1xiKSjzT1Z?p=preview

What is the use-case or motivation for changing an existing behavior?

Which versions of Angular, Material, OS, TypeScript, browsers are affected?

angular material 2.0.0-beta.12

Is there anything else we should know?

The issue appears only when angular flex-layout is imported (even if it is not used).

[josephperrott]

It looks like this is caused because when the value is undefined, the stroke-dashoffset value becomes NaN which results in the css attribute not being applied. The css then animates from offset of 0 to whatever the new value is, which appears to animate as coming from 100%

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