Material: Subheader calls constructor of children twice

[Remco75]

Actual Behavior:

• When using md-subheader and transcluding custom components the constructor of the class is called twice *
• It should be called once

CodePen (or steps to reproduce the issue): *

• <md-subheader><my-custom-component></my-custom-component></md-subheader>
• log something in the constructor of the controller: it will appreat twice in the log:

Angular Versions: *

• Angular Version:1.5.9
• Angular Material Version:1.1.1

Additional Information:

• Browser Type: *
• Browser Version: *
• OS: *
• Stack Traces:

---

Shortcut to create a new CodePen Demo.
Note: * indicates required information. Without this information, your issue may be auto-closed.

Do not modify the titles or questions. Simply add your responses to the ends of the questions.
Add more lines if needed.

[Remco75]

ok, is there an issue number also known? then I can subscribe

[ThomasBurleson]

@DevVersion - do we have an previous issue existing for this known code issue ?

[devversion]

@ThomasBurleson We had a lot issues about similar things, e.g that the ng-repeat is called twice for example.

This is caused by the sticky clone elements we compile at runtime. We have a big issue for this https://github.com/angular/material/issues/9361

[Splaktar]

Closing this as it's tracked in https://github.com/angular/material/issues/9361.