Menu position going wrong on Scroll. Reappearance of #11365

[Stexxen]

Bug, feature request, or proposal:

Bug, Reappearance of #11365

What is the expected behavior?

Menu should not move

What is the current behavior?

It scrolls down and potentially changes shape.

What are the steps to reproduce?

https://stackblitz.com/edit/angular-oy329b-n7au1b
Forked from Angular Docs

Click 'Animal Index' While menu is open scroll window.

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

Material 6.4.7,
Angular 6.1.6

Tested on
Chrome 68, 71
Firefox 52, 61
Safari 11, 12
Opera 55
all on MacOS 10.13

[crisbeto]

I'm not getting this on the demo app running against master. Maybe the fix didn't get released? cc @jelbourn

[Stexxen]

You could be right, I assumed that as the merge was prior to the release of 6.4.7 It would've been included. But now i'm not so sure....

[Stexxen]

Have confirmed. Your fix is included in 7 Beta.0 but not in 6.4.7.
Am closing, sorry for the confusion.

[gpessa]

This is still there in 6.4.7

[crisbeto]

This is fixed in 7.0.0.

[gpessa]

7 is a beta and maybe we cant update to it

[Stexxen]

@gpessa The particular fix that @crisbeto submitted has not been cherrypicked back to the 6.4.x branch. So I think it unlikely that 6.4.8 will have it either.

I don't know why this is; it may rely on other patches that cannot be back-ported.

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